Paul and Jimmy disagree about Sean's treatment plan. Gaby's sister asks for her help. Liz has an idea for boosting business at the food truck.

Paul challenges Jimmy to show restraint with Sean. Derek introduces Gaby to a friend. Liz advises Brian about parenthood.

Jimmy and Brian help Grace deal with unexpected news. Paul and Julie face her past. Liz worries she's come between Sean and his dad.

Jimmy grapples with his guilt over Grace. Paul makes a decision about his relationship. Liz tries to help Gaby find balance in her busy life.

Jimmy faces Alice's secret. Liz and Derek are at a crossroads. Paul worries about his health.

Jimmy helps Alice cope with a huge mistake. Gaby goes home for a family crisis. Liz runs into an old flame.

While trying to stay out of Alice's business, Jimmy has to "Jimmy" an insecure Brian. Gaby leans on Paul for advice after her sister drops a bomb.

Jimmy, a therapist mourning his wife, takes a more proactive approach with his patients in the hopes that helping them will help himself.

To get Sean out of legal trouble, Jimmy reconnects with his estranged best friend—while trying to hide it all from Paul.

When Jimmy hits a roadblock with Sean, he doesn’t have Paul to consult for advice. Brian makes an announcement about his relationship.

Jimmy takes Paul's advice about Alice. Liz finally finds her purpose. Gaby hosts Thanksgiving dinner.

Jimmy witnesses Gaby in a compromising situation. Paul advises Alice on how to deal with her grief while facing a loss of his own.

Paul and Brian come to Jimmy’s aid when Alice starts acting out. Liz and Sean support Gaby by accompanying her to an event.

Jimmy tries to give Alice the perfect 18th birthday. Paul helps Gaby with a huge decision.

As things spiral at work, Jimmy confronts Liz for interfering in his life. Paul struggles with whether to tell his daughter his diagnosis.

Jimmy attempts damage control after his party. Paul’s daughter pays another visit. Liz and Sean discover they have something in common.

Jimmy encourages an ambivalent Paul to accept a career achievement award. Sean approaches Liz with a business proposal.

Jimmy spends the day with a patient. Brian crashes Gaby's date. Liz heads down a dangerous path.

At Alice’s urging, Jimmy agrees to host a party. Gaby struggles with her post-divorce libido. Liz recommends medical marijuana to Paul.

As Brian's wedding approaches, Alice takes issue with how Jimmy is living his life. Liz learns a secret.

Paul and Jimmy look for Sean's dad. Gaby tries to keep Liz from sinking. Alice is surprised to find out who Brian has been spending time with.

Paul encourages Jimmy to seek help. Brian and Derek take Sean to look for a new place. Gaby struggles with her guest list for Thanksgiving.