The episode opens with a scene in Star City, where a mysterious figure, Vandal Savage, is seen confronting Kendra Saunders, a woman who is unaware of her past life as a warrior. Savage reveals that he has been searching for her for centuries, as she is the reincarnation of a woman he loved, and he intends to kill her to prevent her from being reborn again. Kendra is terrified and confused, and as Savage attacks, she is saved by a man named Carter Hall, who is also her reincarnation and has memories of their past lives.

Meanwhile, in Central City, Barry Allen, also known as The Flash, is dealing with the aftermath of his recent battles. He is in a relationship with Patty Spivot, and they share a tender moment at Jitters. However, Barry is still haunted by the loss of his mother and the ongoing threat of Zoom. Cisco Ramon and Caitlin Snow are working on a new project in S.T.A.R. Labs, and they are excited about the potential of their latest technology.

As the day progresses, Barry receives a call from Oliver Queen, the Green Arrow, who informs him about the situation with Vandal Savage and Kendra. Oliver urges Barry to help protect Kendra, as Savage is a formidable foe. Barry, feeling a sense of responsibility, agrees to assist. He gathers his team, including Cisco and Caitlin, and they prepare to confront Savage.

The scene shifts back to Kendra and Carter, who are trying to escape from Savage. They realize that they need to find a way to stop him, and Carter explains their past lives and the connection they share. Kendra is overwhelmed by the revelations but feels a sense of duty to confront Savage. They decide to seek help from Barry and his team.

Barry, Cisco, and Caitlin arrive in Star City to meet with Oliver and the others. They discuss their plan to protect Kendra and Carter while also figuring out how to defeat Savage. Barry is determined to help, but he is also aware of the risks involved. The group devises a strategy to lure Savage into a trap.

As night falls, the team sets their plan into motion. They create a diversion to draw Savage's attention away from Kendra and Carter. Barry uses his speed to create a whirlwind, while Oliver and his team prepare to ambush Savage. The confrontation begins when Savage arrives, and a fierce battle ensues. Barry and Oliver work together, using their respective powers to fight Savage, but he proves to be a challenging opponent.

During the fight, Savage manages to capture Kendra, using her as leverage against Barry and Oliver. He taunts them, revealing his knowledge of their weaknesses. Barry, feeling the pressure, pushes himself to go faster, but Savage is relentless. In a moment of desperation, Kendra taps into her latent powers, revealing her ability to fly and fight back against Savage.

The battle intensifies as Kendra and Carter join the fight, and together they confront Savage. They manage to weaken him, but he escapes, vowing to return. The team regroups, realizing that they have only temporarily thwarted Savage's plans. Kendra and Carter are left shaken but determined to face their destiny.

In the aftermath, Barry reflects on the events and the importance of teamwork. He shares a moment with Patty, who is unaware of the full extent of his superhero life. The episode ends with a sense of foreboding as Vandal Savage is seen plotting his next move, hinting at the larger conflict that lies ahead.

In the ending of "Legends of Today (I)," Vandal Savage confronts the Flash and his team, leading to a fierce battle. Kendra Saunders, also known as Hawkgirl, discovers her past life and connection to Savage. The episode concludes with a cliffhanger as Savage captures Kendra, leaving the fate of the heroes uncertain.

As the episode nears its conclusion, the tension escalates. The scene opens with the Flash, Barry Allen, and his team--Cisco Ramon, Caitlin Snow, and Joe West--gathered in S.T.A.R. Labs, strategizing on how to deal with the looming threat of Vandal Savage. Barry is visibly anxious, knowing that they are up against a formidable foe who has lived for centuries. The weight of responsibility hangs heavily on him, as he feels the need to protect Kendra, who is still coming to terms with her identity as Hawkgirl.

The scene shifts to Kendra, who is grappling with her memories of past lives and her connection to Savage. She is conflicted, torn between fear and the burgeoning strength she feels as she embraces her destiny. Her emotional turmoil is palpable, and she seeks reassurance from Barry, who promises to protect her. Their bond deepens, showcasing the stakes of their fight against Savage.

As night falls, the team prepares for a confrontation. They set a trap for Savage, hoping to catch him off guard. The atmosphere is charged with anticipation and dread. When Savage finally arrives, he is accompanied by his loyal followers, and a fierce battle ensues. The Flash uses his speed to try and outmaneuver Savage, but the immortal villain proves to be a formidable opponent, showcasing his own powers and combat skills.

During the fight, Kendra's past life memories begin to surface, and she realizes that she must embrace her identity as Hawkgirl to stand a chance against Savage. In a moment of clarity, she takes flight, using her wings to aid in the battle. However, despite their combined efforts, Savage manages to overpower them, demonstrating his ruthless nature and the lengths he will go to achieve his goals.

In a climactic moment, Savage captures Kendra, declaring that she belongs to him. The team watches in horror as he disappears with her, leaving Barry and the others devastated. The episode ends on a cliffhanger, with the heroes left to grapple with their failure to protect Kendra and the looming threat of Savage's return. Barry's determination to save Kendra intensifies, setting the stage for the next chapter in their battle against evil.

As the credits roll, the emotional stakes are clear: Barry's commitment to his friends and his growing feelings for Kendra are tested, while Kendra's journey of self-discovery is just beginning. The episode closes with a sense of urgency and unresolved conflict, leaving viewers eager for the next installment.

In "Legends of Today (I)," there is no post-credit scene. The episode concludes without any additional scenes after the credits roll. The focus remains on the main storyline, which involves the introduction of Vandal Savage and the implications of his pursuit of Kendra Saunders, also known as Hawkgirl. The episode wraps up the narrative without extending into a post-credit moment, keeping the audience engaged with the unfolding events rather than teasing future developments.

Vandal Savage is introduced as the primary antagonist in this episode. He is an immortal villain who has been pursuing Kendra Saunders, also known as Hawkgirl, for centuries. His obsession with her stems from their past lives together, where he has killed her repeatedly to ensure she never remembers their connection. Savage's presence creates a sense of urgency and danger, as he seeks to eliminate Kendra and her potential allies.

Kendra Saunders begins to experience flashbacks of her past lives, which leads her to realize her connection to the ancient warrior, Hawkgirl. These memories are triggered by Vandal Savage's pursuit, causing her to confront her identity and the powers that come with it. The emotional turmoil she faces is palpable, as she grapples with the fear of her past and the responsibility of her newfound abilities.

The staff that Kendra uses is a powerful weapon that symbolizes her connection to her past life as Hawkgirl. It is not only a tool for combat but also a representation of her heritage and the legacy she must embrace. When she wields the staff, it enhances her abilities and serves as a catalyst for her transformation into a hero, showcasing her internal struggle to accept her destiny.

Barry Allen is deeply empathetic towards Kendra's plight. He feels a strong sense of responsibility to protect her from Vandal Savage, which drives him to take action. Barry's emotional state fluctuates between determination and concern, as he understands the weight of Kendra's past and the danger she faces. His desire to help her reflects his heroic nature and his commitment to his friends.

Cisco Ramon develops a budding romantic interest in Kendra Saunders throughout this episode. His charm and humor provide a contrast to the darker themes of the story, and he is genuinely supportive of her as she navigates her new reality. Cisco's feelings for Kendra add a layer of complexity to the narrative, as he balances his attraction with the urgency of the situation involving Vandal Savage.

"Legends of Today (I)" from Season 2 of The Flash contains several elements that may be considered objectionable or upsetting for children or sensitive viewers. Here are some aspects to consider:

1. Violence: The episode features action sequences that include fighting, with characters using weapons and engaging in physical confrontations. There are moments of intense combat that may be frightening for younger viewers.

2. Death and Threats: Characters face life-threatening situations, and there are discussions about death and the consequences of violence. The stakes are high, which may evoke fear or anxiety.

3. Supernatural Elements: The presence of supernatural beings and the concept of destiny may be unsettling for some viewers, particularly younger children who may not fully understand these themes.

4. Emotional Turmoil: Characters experience significant emotional distress, including fear, anger, and desperation. These intense emotional moments may be difficult for sensitive viewers to process.

5. Romantic Tension: There are elements of romantic relationships and tension that may not be suitable for all children, depending on their age and maturity level.

Overall, while the episode is part of a superhero narrative, it contains themes and scenes that may require parental guidance for younger audiences.