This week's task is to design a new toy for Mattel. Apex designed a remote-controlled car, where the car parts could be changed, while Mosaic designed an action figure line. Mattel chose to go with Apex's design. Apex was treated to dinner with Trump and his fiance in his penthouse. Rob was fired because he underutilized himself.
Quirky Doc Martin opens his village practice, only to discover that most of his 'patients' enjoy using his waiting room as a makeshift social club.
Drew comes up with a plan to open a retro store, and seeks a partnership with the now-wealthy Wick. However, all of Wick's funds come through his father-in-law, so Drew must help cover up Wick's extra-marital affair or lose his financial backing.
Kellie finally agrees to marry Drew, but their wedding plans are thrown into disarray when she goes into labor.
Vanessa confronts Bernie for looking through her things; Bernie buys security cameras to see what the family's doing, which more he bargained for. Guest appearance by Snoop Dogg.
Junior's life is turned upside down by an accidental marriage; Jones and Garcia chase a Milkshake Man.
A week after Eric and Donna's engagement was called off, they are both on good terms, but have to make big decisions regarding their futures. Donna gets a new look, and Eric decides to take a year off, but to do that he needs to sell Donna's engagement ring to get some money. There's only one problem with his plan: Donna threw it off the water tower. Also, Bob is torn between Pam and Midge, and Red puts pressure on him (only because Kitty pressured Red) to choose between them. However, one of them takes the decision out of Bob's hands.
Joey arrives in L.A. after his new agent offers him his choice of parts on two TV shows, and befriends his neighbor, Alex. His nephew, Michael, wants to move in with him at his new apartment, but Joey fears that this will upset his sister, Gina.
Tommy attempts to handle the insanity of his father while defending Colleen's new lifestyle to Janet. At the firehouse, Sean and Mike the Probie unknowingly launch a full blown wager among the crew.
Eva Heinemann is arrested for public drunkenness and hooks up with Roberto, with whom she was with the night before her arrest. Roberto then reveals his link to Johan and Eva confesses that she was actually a witness the night Junkers was killed by Johan.
After Julia's accident in the previous episode, Julia turns to Sean and Christian to fix her face. Sean resists at first, but eventually decides to do it after Christian lies to him and says the woman that was going to fix her face botched several jobs. Sean tells Julia that he keeps trying to forgive her and wants to try to love her again, but that it wouldn't happen right away. Julia has an adverse reaction to the anesthesia and dreams during her surgery. Ava shows up in her dream as a different form of life coach, and guides her through this surreal life. Julia is married to Christian, which seems happy on the outside, but is really falling apart on the inside. They run the Troy/Troy partnership firm. When Christian decides to leave the practice, Julia interviews another doctor - Sean, someone she knew from high school. Trying to catch up on old times, Sean invites Julia and Christian to dinner. They meet his wife, Megan O'Hara, and their son Matt, who is on the nerdy side and has a bug collection. Megan is three months pregnant with a girl they plan on calling Annie, named after his grandmother. Julia is upset after a visit to Liz, an OB/GYN in this world, who has two kids. Julia cannot have kids with Christian, who wanted to have a biological child since he was adopted. Kimber, Julia and Christian's three-way partner becomes pregnant, and Christian refuses to get rid of it. We are revisited by several characters, including Mrs. Grubman, Jude, and Julia's friend Suzanne. When Julia wakes up in recovery, Sean is there waiting for her. She has realized that things would never work out with Christian, and that Sean was always the one she loved.
Byker Grove follows the lives and relationships of a group of young people who are members of a youth club.
The pressure of the trial combined with confronting Dean sends Paige into a destructive downward spiral. Craig receives a generous 16th birthday present from his late father, which causes a rift between Craig and Joey.
Season 4 begins with Paige, Spinner, Marco, Jimmy, and Hazel entering Grade 11. Spinner buys a car with the money he's earned at The Dot, and Paige receives a summons to testify at the trial of the guy who raped her.
Dr. Clock tries to reconcile J.D. and Eliot, while waiting to see which one Dr. Cox will give the Chief Resident position to. Molly and Carla are experiencing some subtle conflict and Elliot and J.D. begin to come together after long bouts of conflict of their own. Meanwhile, Dr. Cox, Turk and the Janitor are forced to work together to help a patient.
A new recruit causes a stir at Ashfordly police station. PC Rob Walker was brought up in Aidensfield but his family life was far from perfect and his father dabbled on the wrong side of the law. Oscar Blaketon remembers Walker senior all too well and he still has some unfinished business with Rob. Meanwhile, Ben and Liz's fund-raising efforts appear to have rubbed off on Vernon, who begins to show his charitable side.
George experiences the power of celebrity death when she plucks the soul of a rock star.
Brandy stumbles across a suitcase that they weren't aware of, she finds a portable video game and she gives it to Mr. Whiskers to get him to stop bothering her. In the end, he finally has to save Brandy from falling off a cliff.
Mr. Whiskers helps a jaguar named Lorenzo (Bobby Slayton), but when his driving Brandy and Mr. Whiskers at the hook they try to find a way to get Lorenzo out of their lives. Lorenzo invites his family, which Brandy puts a stop to. In the end, Whiskers helps another huge creature with the same problem.