Michael is back in charge of The Bluth Co. and things appear to be on track. However, when Michael decides to take his son on a trip to the family cabin, his plan goes off course when he decides to track down George Sr. and ends up in Reno. Meanwhile, Lindsay - along with George Michael and Maeby, who are still dealing with the aftermath of their awkward kiss - goes searching for Tobias and discovers he's not blue without her. Gob goes to an event hosted by a group that reunites abandoned sons with their fathers and gets a surprise of his own, while Lucille is up to her old tricks dealing with Buster.
To save money on expensive attorney fees, Michael tells George Sr. to plead guilty, but George Sr. proclaims his innocence and says he was set up by an underground British group. Michael goes to "Wee Britain" to investigate these claims, and meets a beautiful British woman, Rita, whom he asks out on a date. Meanwhile, Lindsay tries to flirt with the family's new attorney and ends up being charged for her time, and Gob stages an elaborate magic trick to get out of spending time with his son.
Michael inadvertently lies and tells Rita that he doesn't have a family. But the lie catches up with him, when the Bluths try to surprise Michael by bringing Rita to a family party and all hell breaks loose. Meanwhile, Lindsay works as the nanny to the family's new attorney and George Sr. tries to escape the penthouse.
In an effort to prove to Rita he's not a wimp, Michael tries to convince George Michael to join him in some manly activities, but George Michael is too busy prepping girlfriend Ann for an Inner-beauty Pageant. So Michael and his recently discovered nephew Steve Holt enter a triathlon, only to discover Gob is the one who stumbles at the finish line. Back at work, Michael must deal with a huge mole problem in order to salvage a major real estate deal. But when Gob and Buster team up with George Sr.'s surrogate, Larry, to help Michael save the deal, their plan falls apart in a big way. Meanwhile, Tobias mistakes a CIA agent for a CAA agent and inadvertently betrays the family, and Michael makes Rita a proposal she can't refuse.
Trevor tells Rita that Michael must be eliminated; the family tries to trick Japanese investors; George-Michael mistakes a jet pack as a gift.
After Michael announces he's marrying Rita, George Sr. worries that she's after their family's money. But when Rita's Uncle Trevor tries to stop the wedding by revealing some surprising information about Rita, Michael must decide if he wants to walk down the aisle.
Upset after his breakup with Rita, Michael reaches out to Lucille, but is concerned when he discovers she's dating the Warden behind his father's back. Michael decides to tell George Sr. about the affair, but his dad has an undercover plan of his own.
When Gob interferes at work, Michael gives him his own banana stand in an effort to keep him occupied. But when Michael learns that George Sr. has been using Gob to plot against him, he confronts Gob. The brothers decide to band together to teach George Sr. a lesson once and for all. Meanwhile, Lucille gets a facelift and Tobias and Lindsay vie for Bob Loblaw's attention.
Concerned about the family's future, George Sr. insists they host a fundraiser to raise awareness within the community. Michael is in charge of finding a celebrity to emcee the event, so he sets out on a mission to track down Andy Richter. Meanwhile, Gob inadvertently becomes a waiter and has a run-in with a nasty customer - Lucille.
When Michael represents his family at a mock trial, Buster pretends he's comatose to avoid testifying; Michael learns he may have a long-lost sister.
Michael tracks down the mysterious woman who may be his sister; George-Michael and Maeby learn that their mock marriage is real.
After Gob is imprisoned by American forces, Michael and Buster travel to Iraq to free him; George-Michael throws a surprise birthday party for Maeby.
Michael tries to keep family members from selling their shares of company stock; George-Michael tells his father about being attracted to Maeby.
