Determined to get back in the Magician's Alliance, GOB puts on one last big show, thanks to his brother Michael. Michael, hoping to steal Marta away from GOB, tries to pull a scam almost as great as GOB's magic act. Meanwhile, Tobias, hoping to impress his daughter, becomes a "leather daddy".
When Michael suspects that George Michael has been smoking marijuana, he enlists the help of a one-armed man his father used to scare them as children. GOB and Buster participate in the bust, which also enlists the help of a local stripper agency.
The family's new public relations director gives them each a task while Michael tries to get his son in the prestigious Milford Academy. Buster, a graduate, is to be neither seen nor heard. Tobias heads to Boston to get his medical license back, only to meet Carl Weathers on the way there, and GOB makes the academy's founder disappear.
It's Valentine's Day and everyone but Michael has a reason to celebrate. Buster, tired of dealing with his mother, goes to live with the rest of the family in the model home. But soon Marta realizes that Michael is the one she has feelings for, not GOB.
After Tobias moves into his room, George Michael gets a rather curious tip about his cousin's origins, so he decides to investigate. GOB, worried about his girlfriend Marta, heads down to the TV studio to visit the set of her show, to confront a man named "Hermano".
George Bluth Sr. gets a visit from a rabid female fan who may be in love with him. George Michael is interested in his teacher, and so is his father. Gob tries to get revenge on Michael for trying to steal his girlfriend.
Michael is tired of the family getting free handouts from the Bluth Company without doing anything, so he puts them to work. He puts Lindsay to work at the company answering phones, while GOB and Buster take construction jobs. Meanwhile, the sheep-like behavior of the Bluth Company employees gets them in trouble on a visit to the island of Catalina, and Tobias, researching his role as a frightened inmate, checks himself into the prison where George Sr. is being held.
Micheal has a one-night stand with a woman named Maggie Lizer. He has a guilt-trip after learning she is blind, but not so much after he discovers that she's the prosecuting attorney against his family. Meanwhile, GOB gets married to a woman after a series of escalating dares, and tries to get a subsequent divorce.
Michael gets an evidence file about his family after sleeping with the Maggie Lizer, the prosecuting attorney. But he suspects that she's not exactly telling the truth, so he sends Tobias to her house to investigate, who finds out that she's not blind. Meanwhile, GOB's divorce does not go as smoothly as planned.
Spring Break hits Orange County, and GOB plans to take his magic act to the popular video series "Girls With Low Self Esteem" by making the family yacht disappear. Michael becomes concerned that George-Michael is spending too much time with GOB, so he puts George Michael to work at the Bluth Company. Kitty threatens to go to court with evidence against the company. Meanwhile, Lindsay and Maeby investigate the whereabouts of their grandmother, and Lucille's newly adopted Korean son Annyong annoys the family.
The family accountant, Ira Gilligan, is planning to snitch, and George Sr. will do everything possible to stop him. He enlists GOB to throw a party, where he will try to make Ira flee the country to avoid testifying. Michael and his son plan a fishing trip, while Tobias wants to reunite a folk band he formed with Lindsay and Maeby to promote pharmaceuticals.
Some company funds have been unfrozen, and everyone in the family wants a cut of it. Michael makes a bad investment on his uncle Oscar's land, and takes the blame for it. Meanwhile George Michael spots a mysterious man who looks a lot like his grandfather, and the Bluth Company institutes a new whistle-blowing policy.
Michael decides that it's time to retire a long-running joke involving George-Michael and "Take Your Daughter To Work Day", so he brings Maeby along for the ride instead. The police get involved in the disappearance of Kitty Sanchez, the company's former secretary, and Michael discovers shocking video evidence of Kitty's last known whereabouts.
Michael learns the real secret behind the Bluth Company's international accounts - his dad may have been illegally building houses similar to the one he lives in in Iraq. George Sr. agrees to take a lie detector test to prove his innocence, but the family gets word that he has had a heart attack while in prison. The family goes to the hospital to visit, but learns that George Sr. has made an elaborate escape. Michael decides that he's had enough, and he and George-Michael decide to pack up and head to Phoenix.
Michael Bluth denounces his family after George Sr. escapes to Mexico with his secretary Kitty. But when Michael announces plans to move to Phoenix, Barry informs him that he cannot leave California or he will face prosecution for his father's crimes. While Michael scrambles to find the company checkbook, Lucille signs Buster up for the Army, and Lindsay and Tobias institute an open marriage.
Michael's new business model backfires when GOB suggests that they build a fake house in two weeks. Meanwhile, George Sr. turns up in Mexico, only to be captured by prison guards who have been injured by a shoddy device he tried to market in Mexico years earlier.
Michael gets a lead that his father has fled to Mexico and takes along a group to retrieve him. In the meantime, he tries to connect with George-Michael's girlfriend, Ann, and Buster tries to escape going off to the army by stowing away.
George is declared dead in Mexico and the Bluth family holds a wake for their dead family member. Meanwhile, George isn't dead and has returned to the USA, only to be found by a newly dumped George Michael.
Some unfortunate pictures of Tobias wind up on the internet, which the military mistakes for pictures of Iraq and proof that the Bluth Company was building houses over there. Wayne Jarvis, the family's former attorney, makes Michael an offer he cant refuse. Meanwhile, Buster seeks GOB's help to provide motivation for his Army training.
While Buster looks for ways to get out of serving in Iraq, Lindsay's quest to score a date at the Bluth Company Christmas party backfires after GOB's sexual harassment speech. Michael and Maeby get in trouble singing Afternoon Delight, but are quickly overshadowed by Oscar and Lucille's afternoon delight.