Michael is back at the helm of the company and since all things seem to be going smoothly, he decides to take George Michael to the family cabin. But things take a bad turn when Michael decides to track down his father which leads him to Reno. Meanwhile, Lindsay, as well George Michael and Maeby (who are still dealing with their kiss), head out to find Tobias; G.O.B. attends an event that reunites abandoned sons with their father; and Lucille regresses back to her old self while dealing with Buster.
George, Sr. claims that he was framed by a British group despite being urged to plead guilty. Michael travels across town to Wee Britain to look into his father's claim where he meets Rita, a beautiful British woman who Michael soon asks out. Meanwhile, Lindsay seduces the new attorney, but is charged for her time; and G.O.B. spends all of his time doing his magic in order to avoid spending time with his son.
Michael, worried about what Rita would think of him, lies and tells her he has no family. However, the truth eventually comes out when Rita is invited to a family function, leading to bad results. Meanwhile, Lindsay is hired as a nanny for the new attorney; George, Sr. once again attempts an escape; and Tobias coaches Buster to help him overcome his self-confidence issues.
When Rita calls Michael by a nickname he thinks means 'weak', Michael tries to talk George Michael into going with him to various 'manly' activities. However, George Michael opts to help Ann get ready for her Inner-Beauty Pageant so Michael signs up for a triathlon with Steve Holt. Meanwhile, George, Sr. volunteers with the Startled Straight program, but scares the wrong group.
Michael scrambles to salvage a real estate deal when a mole problem arises. He receives help from G.O.B., Buster, and Larry, but the plan ends up not working at all. Meanwhile, Tobias thinks a CIA agent is a CAA agent, causing him to inadvertently betray his family and Michael makes Rita a tempting offer.
Michael announces to his family that he is going to marry Rita, making George, Sr. think that Rita is only after the company's money. As Rita's Uncle Trevor reveals some surprising information to stop the wedding, Michael debates whether or not he wants to go through with the wedding.
Crushed over his breakup with Rita, Michael tries to reach out to his mother but soon discovers that she's dating the Warden. Michael finally decides to tell his father about his mother's infidelity, but George, Sr. has an undercover plan of his own. Meanwhile, Buster's pet turtle gets into Oscar's secret box of weed and the Bluth family come together to plan a benefit for Tobias' life-threatening hair transplant.
G.O.B. begins to be a nuisance at work so Michael puts him in charge of his own banana stand to keep him away from the Bluth Company. However, Michael finds out that his father is using G.O.B. against him who leads to a confrontation between G.O.B. and Michael that results in G.O.B. and Michael teaming up against their father. Meanwhile, Lucille gets a face-lift and Tobias and Lindsay fight for attention from Bob Loblaw.
Worried about his family's future, George, Sr. insists upon a fundraiser to raise community awareness. Michael is put in charge of finding a celebrity to serve as emcee for the event and ends up tracking down Andy Richter. Meanwhile, G.O.B. accidentally becomes a waiter and has to deal with a rude customer -- his mother.
George, Sr. hires a new attorney and has his family participate in a fake trial, presided by Judge Reinhold, in preparation for the real thing. Meanwhile, Buster fakes being in a coma to get out of testifying and George Michael and Maeby are mock-wed to entertain hospital patients. Elsewhere, Michael begins to figure out the identity of N. Bluth.
Michael hires a woman who might be his sister and the services she provides are just what the company needs but not the services that Michael expected. Meanwhile, Buster's fake coma grabs the attention of a local politician.
Michael and Buster travel to Iraq to rescue G.O.B. who had been imprisoned while on a USO tour. There they encounter a WMD - web of mass deception - that involves the Bluth family. Back in the states, George Michael plans a Sweet 16 birthday surprise party for Maeby.
All the charges against the company are dropped, leading Michael to have to deal with a new style of dysfunction as he prepares to become CEO of the Bluth Company.