After their marriages fail, Oscar and his former college roommate, Felix, decide to live together.

Felix offers his help when Oscar is hired to ghostwrite a retired baseball player's autobiography.

When Oscar realizes he forgot Felix's birthday, he plans an impromptu surprise party.

Dani wishes she had a boyfriend for her high-school reunion so Oscar, Felix and Ted work on finding her a man.

When Oscar and Felix attend the wedding of an old college friend, Oscar aims to reconnect with an old flame while Felix is determined to show his ex-wife that he’s a changed man.

Felix’s hypochondria kicks into overdrive when Oscar starts dating the most important person in Felix’s life – his doctor.

Felix convinces Oscar to appear on a sports television show against Teddy’s advice to stick with radio.

When Oscar feels threatened by Felix’s surprising performance on the softball field and basketball court, they agree to a decathlon to determine which one of them is the better athlete.

When Felix substitute teaches a yoga class, his teaching style rubs everyone, including Emily, the wrong way. Also, Oscar and Dani get trapped on a subway car, adding to their frustration about living in the city, and Murph asks Teddy to be his agent when he’s approached to be the spokesperson for a Norwegian health supplement.

Oscar becomes weirdly obsessed with living up to Murph’s reputation when he finds out that the girl he is seeing used to date the handsome ex-baseball player.

When the IRS decides to audit Oscar and his ex-wife, Gaby, Felix offers to mediate between the contentious exes and suddenly realizes that he might be the reason Oscar was audited in the first place.