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

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.

With the help of Murph, Oscar decides to throw a big party when Felix finally agrees to spend the weekend away. Also, Felix and Emily have their first sleepover.

Oscar's dream comes true when he is asked to throw out the first pitch at a New York Mets game. Also, Felix surprises Oscar and invites his father to be there for the big day.

Oscar reluctantly agrees with his agent that it’s time to shake things up on his radio show and allows Dani to have a bigger role after a rival host, Rich Eisen, taunts him. Also, Felix is eager to meet Emily’s mother, Judy (Joanna Cassidy), but things don’t go as well as he hoped.

In an attempt to surprise Emily, Felix gets his learner’s permit and enlists his friends to help him learn how to drive. Also, Oscar is annoyed that Felix doesn’t ask him for help,

Oscar and Felix run a heated campaign for president of their building’s tenants’ association, but Oscar doesn’t fully realize everything the position entails.

After Murph persuades Oscar to try online dating, Oscar finds himself on a blind date with Felix’s ex-wife, Ashley.

Oscar reconnects with many significant people from his father's life when he agrees to carry out Walter's last request to spread his ashes behind the candy factory he once owned.

Felix goes into a frenzy when the responsibility of hosting the Unger family Christmas falls onto his plate after his perfectionist mother bows out. Meanwhile, Oscar tries to convince his roomie's mom to give her son a break.

Oscar arranges for Felix to replace him on any cultural outing that Charlotte has planned; and Emily recruits Dani, Teddy and Murph for help making 100 necklaces for an event.

Felix takes the first step in moving on from Emily by picking up a bartender named Natasha (Busy Philipps) and bringing her home for the night. It later backfires when Felix doesn't know how to have a one-night stand; Natasha starts to get attached and won't leave. Meanwhile, Oscar takes his relationship with Charlotte to the next level by asking her to leave her toothbrush at his apartment, after which they get into a conversation about their relationship and say "I love you" to each other.

Murph is hosting a new TV sports segment wherein Oscar is pitted against a penguin to pick the winners of hockey games. Oscar soon becomes the butt of jokes when the penguin's random picks (made by walking under one team logo or another) turn out to be more reliable than his. Elsewhere, Emily asks Felix to shoot photos of her for a jewelry website, but Felix misinterprets her verbal cues and thinks she wants to get back together with him.