The episode "Red, Green, Blue" of Motorheads begins with the crew working late into the night to finish the UNB10 car, with Cate pushing the team hard to meet the deadline since they have school the next day. Logan intervenes to make them stop working so late, emphasizing the importance of rest before school.

The next day, Zac continues his training under Ray's guidance, which significantly boosts his confidence as he prepares for the upcoming race against Harris, scheduled in three weeks. Zac's training is intense and focused, showing his determination to improve.

Meanwhile, Caitlyn and Curtis investigate leads related to Christian Maddox's disappearance. They discover a possible clue that could help locate him, which adds a new layer of urgency and hope to their search.

Logan uncovers the identity of Zac's trainer, Ray, which surprises him and adds tension, as Ray has a complicated reputation. This revelation causes Logan to question Zac's choices and motivations.

Harris is shown dealing with emotional turmoil on the day of his mother's birthday memorial. This personal challenge affects his mood and focus, adding depth to his character and showing the stakes beyond the race.

Curtis takes Brooke for a ride on his bike, providing a moment of calm and connection between them amidst the surrounding tension and chaos.

Throughout the episode, the team works overtime to complete the UNB10 car, facing technical challenges and interpersonal conflicts. Marcel remains angry at Zac for previously damaging his car, which causes friction within the group.

The episode also revisits past events involving Hugo and Christian Maddox, revealing that Hugo was in the car with Christian during a critical incident. This backstory is interwoven with present-day events, including Ray and his gang's attempt to rob the town's shops during a festival blackout, which ends abruptly when police sirens are heard.

Ray's gang retaliates against Logan by smashing his vintage Ford Mustang after he calls the cops on them, escalating the conflict between the characters.

The episode culminates with Cate, Zac, Curtis, and Marcel jumping off a bridge as they had agreed earlier, symbolizing a pact or a moment of reckoning. During this sequence, one of the guy's necklaces sinks into the river, and Christian's car from a previous chase is shown resting at the bottom, hinting at unresolved mysteries.

These events set the stage for the upcoming race and deepen the intertwined personal and criminal storylines driving the season forward.

The episode "Red, Green, Blue" ends with the crew completing the UNB10 car as Zac's confidence grows under Ray's guidance. Caitlyn and Curtis discover a clue about Christian Maddox's whereabouts. Logan finds out who has been training Zac. Harris faces a personal challenge on his mother's memorial day. Curtis takes Brooke for a bike ride, and the episode closes with the team preparing for the upcoming race between Zac and Harris in three weeks.

Expanded narrative of the ending scene by scene:

The episode culminates with the team working intensely to finish the UNB10 car, racing against the clock with only three weeks left before Zac's big race against Harris. The atmosphere is tense but hopeful as Zac, under Ray's mentorship, gains confidence in his driving skills. This marks a significant moment for Zac, showing his growth and readiness for the challenge ahead.

Meanwhile, Caitlyn and Curtis uncover a promising lead regarding Christian Maddox's whereabouts, adding a layer of mystery and urgency to their subplot. This discovery hints at unresolved issues and potential future developments in the story.

Logan, who has been somewhat in the background, reveals that he has learned who Zac has been training with, which adds complexity to the relationships and alliances within the group.

Harris, dealing with the emotional weight of his mother's memorial, faces a personal challenge that humanizes him and deepens his character beyond the rivalry with Zac.

In a quieter, more intimate moment, Curtis takes Brooke for a bike ride, providing a brief respite from the tension and highlighting the personal connections among the characters.

The episode closes with the team united and focused, the UNB10 car ready, and the race looming, setting the stage for the next chapter in their intertwined stories. Each main character involved in these final scenes--Zac, Caitlyn, Curtis, Logan, Harris, and Brooke--ends the episode positioned for significant developments, with Zac and Harris's upcoming race as the central event to watch.

In episode 7, 'Red, Green, Blue,' the team is under pressure with only three weeks left until Zac's race with Harris, so they rush to complete the UNB10 car, working overtime to get it ready in time.

Zac's confidence grows as he trains with Ray, who acts as his trainer and mentor during this episode.

Caitlyn and Curtis find a possible lead related to Christian Maddox, which could be important to the storyline.

Harris deals with the emotional challenge of his mom's memorial, which occurs around the same time as the upcoming race.

Curtis takes Brooke for a ride on his bike, which is a notable subplot in this episode.

The TV show "Motorheads," Season 1, Episode 7 titled "Red, Green, Blue" is generally mild in content but not fully family-friendly for very young children or highly sensitive viewers. It contains mild instances of sex and nudity, violence and gore, profanity, alcohol, drugs, and smoking, as well as some mild frightening and intense scenes.

Potentially objectionable or upsetting aspects for children or sensitive people include:

• Mild violence and some scenes involving car crashes or aggressive behavior.
• Mild language and occasional profanity.
• Mild sexual content or nudity.
• Depictions of alcohol use, smoking, and drug references.
• Some intense or suspenseful moments that might be unsettling.

Overall, the show is a teen drama with emotional depth and street racing action, so it is more suitable for older teens and adults rather than young children or very sensitive viewers.