During an appearance on a typically terrible morning radio show, Marc declares the medium dead, and the future belongs to podcasting. However, when he meets a largely ignored radio genius, he has a new respect for some DJs.

As Marc's career reaches new heights, he is visited by an old acquaintance, desperate for a helping hand. After the comic passes away, Marc is forced to confront the reality that his success could disappear in an instant.

Marc looks for work in the new town and attempts to get close to his baby.

Marc tries to convince Shay that he can be a positive force in her son’s life.

Marc's mom comes to visit. He wants to avoid her and pawns her off on a friend's Dad. The plan backfires when the older couple hit it off too well and Marc has to parent his Mom through an STD scare.

When Marc accidentally steals a joke from another comedian, he feels guilty. That guilt is put to the test when the comic insists Marc help his career in return.

Marc’s neighbors have the egg part of the recipe, but need the other necessary ingredient to make a baby. Yep, Marc’s lesbian neighbors want him to father their child. What could possibly go wrong?

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Marc takes a writing position on Dave’s new TV show.

Marc decides to travel to Shay and meet his baby.

Marc is dreading an upcoming road trip. He's tired of doing the same old material and is anxious at the thought of writing new stuff but his anxiety reaches a peak when he discovers a sore that he believes to be mouth cancer.

Marc hits it off with Rachael Harris by comparing their bad relationship scars. When Marc pursues her, she wants him to prove he's over his anger issues by joining her yoga class.

In denial about his current situation, Marc is reluctantly convinced by his friends to enter rehab.

Marc tries to suppress romantic feelings for a fellow rehab patient.

Marc goes to stay with his mother in Florida and must deal with her irritating boyfriend.

Marc is riding high, his career is taking off and his relationship with Jen seems to be going well. However, Marc turns out to be his own worst enemy as he sabotages a TV guest spot and ruins his relationship at the same time.

Marc is dealing with the finality of his relationship with Jen but is sidetracked by his missing cat, Boomer. He goes door to door through his neighborhood, looking for his cat, while at the same time learning how his neighbors deal with loss.

In the Season 3 premiere, Marc's girlfriend insists he get to know her kid, while Elliott Gould insists Marc take on his agent.

Marc tries to connect with his niece by introducing her to her YouTube idol.

When Marc begins working with a therapist, he runs into his ex-wife which drudges up old issues.

Marc responds to criticism about the lack of diversity on his podcast by inviting comedian Bruce Bruce for an interview.

Marc and his fellow rehab patients go on a field trip to his old neighborhood.

Marc’s sponsor sets him up with an unusual living situation.

Marc begins to make his amends and in the process learns that he is a father.

Marc and Jen enter couples therapy with married therapists but instead of helping, it exacerbates their issues. After Marc feels wronged by the therapists, he ends up putting a dent in their "perfect" relationship.