The episode begins with Dexter Morgan dealing with the aftermath of the previous season's events, particularly the fallout from the revelation of his dark secret to his sister, Deborah Morgan. Dexter is seen in his apartment, reflecting on his life and the choices he has made. He is trying to maintain a sense of normalcy while grappling with the emotional turmoil of his relationship with Deb.

Deborah is shown at the precinct, struggling with her feelings about Dexter. She is trying to focus on her work but is clearly affected by the knowledge of Dexter's true nature. She meets with her colleagues, including Angel Batista and Quinn, who are discussing a recent case. The tension in the precinct is palpable as Deb tries to keep her personal issues separate from her professional life.

Meanwhile, Dexter is on the hunt for a new target. He learns about a man named Sal Price, a crime novelist who has been involved in a series of murders. Dexter is intrigued by Price's background and begins to investigate him. He discovers that Price has a connection to a recent murder case that Deb is working on, which complicates matters for Dexter.

As Dexter continues his investigation, he attends a crime scene where a body has been discovered. He uses this opportunity to gather information about Price and his potential connection to the murders. Dexter's meticulous nature is on display as he analyzes the evidence and considers how it fits into his own code of justice.

Deborah, meanwhile, is dealing with the pressure of her new role as lieutenant. She faces scrutiny from her superiors and is determined to prove herself. She confronts Dexter about his behavior and the secrets he has kept from her. This confrontation is tense, as Deb struggles to reconcile her love for her brother with the horror of his actions.

In a parallel storyline, a new character named Hannah McKay is introduced. She is a woman with a troubled past who becomes involved with Dexter. Their initial meeting is charged with chemistry, but Dexter is cautious, aware of the potential dangers of getting close to someone new. Hannah's presence adds complexity to Dexter's life as he navigates his feelings for her while still dealing with his dark urges.

As the episode progresses, Dexter's investigation into Sal Price leads him to a confrontation. Dexter discovers that Price is not only a suspect but also has a dangerous side. The tension escalates as Dexter realizes that he must act quickly to prevent Price from harming anyone else. He sets a plan in motion to confront Price and eliminate the threat he poses.

The climax of the episode occurs when Dexter finally confronts Sal Price. The encounter is intense, with Dexter using his skills to outsmart Price. A struggle ensues, and Dexter ultimately gains the upper hand. He makes the decision to kill Price, adhering to his code of justice. The scene is visceral, showcasing Dexter's internal conflict as he grapples with the necessity of his actions.

After the confrontation, Dexter returns home, where he reflects on the events that have transpired. He is haunted by the choices he has made and the impact they have on his relationship with Deb. The episode concludes with Dexter feeling a mix of satisfaction and dread, aware that his life is becoming increasingly complicated as he tries to balance his dual existence.

At the end of "Sunshine and Frosty Swirl," Dexter Morgan finds himself in a precarious situation as he grapples with the consequences of his actions. The episode concludes with Dexter confronting the reality of his dark urges while navigating the complexities of his relationships, particularly with his sister, Debra, and the new threat posed by the return of Hannah McKay.

As the episode unfolds, Dexter is still reeling from the aftermath of the previous events, particularly the revelation of his dark secret to Debra. The tension between them is palpable, and Debra is struggling to reconcile her feelings about Dexter's vigilante justice with her role as a police officer.

In a pivotal scene, Dexter attends a meeting with the Miami Metro Police Department, where he is introduced to the case of a new serial killer, the "Doomsday Killer." This killer has been leaving behind a series of gruesome crime scenes that pique Dexter's interest. He begins to investigate the case, using his unique skills to piece together the clues.

Meanwhile, Debra is dealing with her own turmoil. She is haunted by the knowledge of Dexter's true nature and is trying to maintain her professional demeanor while grappling with her personal feelings. In a moment of vulnerability, she confronts Dexter about his actions, leading to a heated exchange that reveals the depth of their complicated relationship.

As the investigation into the Doomsday Killer progresses, Dexter discovers that the killer has a connection to Hannah McKay, a woman from his past who has her own dark history. Dexter's interest in Hannah is rekindled, and he finds himself drawn to her despite the potential danger she represents.

In a climactic moment, Dexter tracks down the Doomsday Killer, leading to a tense confrontation. The killer is ultimately apprehended, but not without leaving a trail of destruction in his wake. Dexter's methods come into question, and he is forced to confront the moral implications of his actions once again.

The episode concludes with Dexter standing at a crossroads. He is left to ponder the consequences of his choices, both as a vigilante and as a brother. Debra, still grappling with her feelings, is left in a state of uncertainty about her relationship with Dexter. The final scenes hint at the growing tension between Dexter's dark urges and his desire for a normal life, setting the stage for the conflicts to come.

In summary, the fates of the main characters are intertwined in a web of secrets and revelations. Dexter continues to walk the line between his dual identities, while Debra is left questioning her loyalty and the nature of justice. The episode closes with a sense of foreboding, as the characters are drawn deeper into a world of darkness and moral ambiguity.

In "Sunshine and Frosty Swirl," the second episode of Dexter's seventh season, there is no post-credit scene. The episode concludes without any additional scenes after the credits roll. The focus remains on the main storyline and character developments throughout the episode, wrapping up the events without extending into a post-credit moment.

Hannah McKay is introduced in this episode as a key character who has a connection to a series of murders. Dexter becomes intrigued by her, and she plays a significant role in the unfolding events.

In this episode, Dexter struggles with the aftermath of Debra discovering his dark secret. Their relationship becomes strained as Debra grapples with her feelings of betrayal and confusion about Dexter's true nature.

Dexter attempts to maintain his normal life while hiding his dark urges and the truth about his actions from Debra. He is also trying to manage the tension that arises from Debra's knowledge of his secret.

The investigation into the Doomsday Killer continues as the Miami Metro police work to uncover the identity of the killer. Dexter uses his own methods to gather information while trying to stay one step ahead.

The title 'Sunshine and Frosty Swirl' refers to a specific ice cream shop that becomes a focal point in the episode, symbolizing the contrast between Dexter's seemingly normal life and the dark reality of his actions.

In "Sunshine and Frosty Swirl," the second episode of Dexter's seventh season, there are several scenes and themes that may be considered objectionable or upsetting for children or sensitive viewers.

1. Violence: The show features graphic depictions of violence, including scenes of murder and bloodshed, which may be disturbing.

2. Murder Investigation: The episode involves a murder investigation, showcasing crime scene elements that can be unsettling.

3. Dark Themes: The overarching themes of the show revolve around serial killing, morality, and the psychological struggles of the main character, which may not be suitable for younger audiences.

4. Emotional Distress: Characters experience significant emotional turmoil, including grief and betrayal, which could be upsetting for sensitive viewers.

5. Adult Language: The dialogue includes strong language and adult themes that may not be appropriate for children.

These elements contribute to the show's mature rating and may not be suitable for a family-friendly viewing experience.