The episode "Disassemble" of Motorheads season 1 begins with young Logan teaching young Christian how to drive. After Christian becomes proficient, Logan takes him to a junkyard to pick up the UNB10 car. In the present timeline, Logan joins the group as they brainstorm how to rebuild the UNB10.

At school, Noah shows Harris a video posted online of Harris shredding at a street takeover. Noah initially thinks the video is a compliment, but it turns out to be mocking Harris. In auto shop class, the students receive new laptops intended to help them learn vehicle diagnostics. Curtis tries to ask Cate to hang out after class, but Cate declines.

Curtis and Zac decide to cut class and head to Pittsburgh. Meanwhile, Sam explores Ironwood and visits familiar places, where she runs into Darren at the skate house. Darren mistakenly believes he and Sam had a first date at the rink. They take a walk around town, reminiscing about the past and the changes in Ironwood.

At school, Kiara invites Cate to join her for lunch, which becomes a group event including Brooke and Marcel. Brooke shows interest in Curtis and asks Marcel if he has a girlfriend. Marcel is a new student eager to fit in.

Back at the skate house, Curtis calls Ray for help after his motorbike engine fails. Ray sends Mike to pick them up and bring them to a street race with his friends at an abandoned airstrip. Zac and Curtis watch high-octane drag racing run by Ray.

Zac practices driving at the junkyard with a battered car called "Dottie," owned by Buzz, who warns him that racing requires knowing when to hit the gas or the brakes. Zac asks Logan to train him like he trained Zac's father, but Logan is reluctant, fearing the dangers of racing.

At school, Harris is grounded without his car, so Alicia drives him. Curtis helps Cate with restoring the UNB10, and turns to Ray for vintage parts. Ray demands Curtis's help on a job in return.

During Ironwood's annual Fireflies Festival, Cate and Curtis grow closer, while Kiara, the mayor's closeted daughter, shares a moment with Cate. Marcel reveals his new racing logo. Zac loses a street race, wrecking Marcel's car, which causes tension.

That night, Ray and his gang attempt a robbery during the festival blackout, but police interference limits their haul. In retaliation, they destroy Logan's classic Mustang.

Cate, Zac, Curtis, and Marcel leap from Ironwood's bridge as promised. Tensions flare when Marcel blames Zac for his broken car. Beneath the water, a necklace sinks, revealing Christian Maddox's long-lost car at the river's bottom.

Throughout the episode, Zac grapples with his desire to race, his father's legacy, and his complicated feelings for Caitlyn amid peer pressure and rivalries. Logan remains protective and opposed to Zac racing, fearing dangerous outcomes.

The episode ends with the group continuing to work on rebuilding the UNB10, setting up future conflicts and developments around racing, loyalty, and personal growth.

The ending of Motorheads Season 1, Episode 4 "Disassemble" shows Zac and Harris engaging in a tense street race that ends with Harris crashing badly after hitting a pothole. Meanwhile, Samantha and Logan discover that the money they were looking for has been taken, leaving only an old photo behind. Caitlyn receives a mysterious phone call as the episode closes on a cliffhanger.

Expanded narrative of the ending scene by scene:

The episode culminates with Zac and Harris preparing for a street race, a challenge born from Harris being mocked online for his driving skills. Zac, having asked Logan to train him like he did with Zac's father, is determined to prove himself. The race begins with high tension as both drivers push their limits on the rough streets.

During the race, Harris loses control after hitting a pothole, resulting in a severe crash. This accident marks a dramatic turning point, highlighting the dangers of their reckless competition. Zac's fate at this moment is not explicitly detailed, but he survives the race itself.

Simultaneously, Samantha and Logan are seen digging up a spot where they expect to find money, presumably linked to past events or a heist. Instead of cash, they find only a photograph of Logan and Christian from their youth, suggesting that Christian may have returned and taken the money before them.

As the dust settles from these events, Caitlyn receives a mysterious phone call from Spider Lake, Michigan. The call is cryptic and unanswered fully in this episode, leaving viewers with a suspenseful cliffhanger.

The main characters' fates at the end are:

• Harris is seriously injured from the crash.
• Zac survives the race but is left with the consequences of the event.
• Samantha and Logan are left puzzled and empty-handed regarding the money.
• Caitlyn is drawn into a new mystery via the phone call.

This ending scene-by-scene progression emphasizes the escalating risks the characters take, the unresolved mysteries surrounding the money, and sets up future conflicts and revelations for the series.

The TV show "Motorheads," Season 1, Episode 4 titled "Disassemble" (2025), does not have any publicly documented post-credit scene. None of the available detailed episode summaries, reviews, or credits mention a post-credit scene for this episode.

The episode itself focuses on several key plotlines: Zac and Curtis watching drag racing, Kiara's lunch turning into a group event, Harris dealing with a mocked street video that leads to a race, and Zac asking Logan to train him like he trained Zac's dad. However, no additional scenes after the credits are noted in the sources.

Therefore, based on the current information, there is no post-credit scene in "Disassemble."

Episode 4 begins with young Logan teaching young Christian how to drive, after which Logan takes Christian to the junkyard to pick up the UNB10 car.

In the episode, Curtis tries to ask Cate to hang out after auto shop class, but Cate turns him down. Later, Kiara invites Cate to join her for lunch, which becomes a group event.

Noah shows Harris a video online where Harris is mocked for his shredding skills, which prompts Harris to participate in a street race. Meanwhile, Curtis and Zac skip class and head to Pittsburgh, where they get involved in drag racing at an airstrip run by Curtis' brother, Ray.

The junkyard is where Logan takes Christian to pick up the UNB10 car, and in the present timeline, Logan joins the group as they brainstorm rebuilding the UNB10, highlighting its importance to the characters and the plot.

Sam explores Ironwood and runs into Darren at the skate house. Darren mistakenly thinks he and Sam had a first date at the rink, leading them to take a walk around town reminiscing about the past and the changes in the town.

The TV show Motorheads, Season 1, Episode 4 "Disassemble" (2025), is rated TV-14, indicating it is generally suitable for viewers aged 14 and older but may not be appropriate for younger children. The content includes mild levels of sex and nudity, violence and gore, profanity, alcohol, drugs, smoking, and frightening or intense scenes.

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

• Mild sexual content or nudity
• Mild violence or gore
• Mild use of profanity
• Mild depiction of alcohol, drugs, or smoking
• Mild frightening or intense scenes

These elements are present but not at a strong or graphic level, consistent with a TV-14 rating. Parents or sensitive viewers should be aware of these mild mature themes before viewing.