John seeks financial backing for a new business venture, Tom deals with the fallout from an ill-advised fling with a coworker, and Mike agrees to let Pam decorate his loft.
John has second thoughts about his arrangement with Leon, Bill gets unexpected news from his ex-girlfriend, and John takes offense at his friends not believing in him.
Tom learns the identity of John's benefactor, Mike is worried that Pam is trying to get him to commit, and Bill attempts to reconnect with Regina.
Bill pours his heart out to Regina, Tom gets a visit from Alice, John talks business with Level 28's owner, and Mike tries to set boundaries with Pam.
Peter interrupts Regina and Bill's heart-to-heart, Tom tries to keep John from making a mistake, Regina goes to Alice for advice, and Mike sees Pam out with another guy.
Mike makes a scene in front of Pam's date, Alice reminds John about his past decisions, and Tom reveals to Mike the real reason John was kicked out of college.
Mike tries to repay John for taking the fall for him back in college, Regina questions the sincerity of Bill's feelings, and Tom's bad behavior at work catches up to him.
An incident at work puts Tom's career on the line. Mike suggests that he, Tom and Bill go talk to Leon about giving the money back and talk to John out of his newfound business.
Mike secretly shows up for his friend and saves his life.
John's love life and professional life start looking up after Leon severs their business relationship, and Mike tries to patch things up with Pamela.
Mike considers making a serious commitment.
Bill decides to follow his heart despite a growing controversy.
Bill scares his friends when he cannot be persuaded against a newfound obsession. Bill and Regina hook up during her bachelorette party and John tries to keep his mom from walking in on them.
John tries to stop Bill out of crashing Regina's wedding. Alice makes her son uncomfortable by bring home a stripper and Mike reaches out to the women in his life.
Fiona tells Pamela how Mike really feels. Bill goes through great lengths to sweep Regina off her feet. And Tom meets with the chief of medicine to discuss Valerie's allegation.
Tom has an uncomfortable encounter at work. Mike begins to see a different side in Pamela, and Bill plans a grand gesture for Regina on her wedding day.
It's Regina's wedding day and Bill's grand gesture lands him in the hospital. Mike is surprised when Pamela shows up to the wedding with a date and encounters an old flame. Alice tries to calm Regina's nerves.
Chaos erupts at Regina's wedding as Bill rushes to get out of the hospital and down to the altar in time. Mike begins to cause problems for Pamela as his ability to be monogamous is called into question.
Chaos and confrontation continues to disturb Regina's wedding as Bill declares his love for her in front of her guests. John receives some surprising news from Alice.
In an attempt to give her relationship with Mike a try, Pamela wants to make sure that Mike is fully committed. After calling off the wedding, Regina announces that she's moving to L.A. and word gets back to Bill.
Pamela wants to slow things down with Mike. Tom goes out of his way to help a patient from her abusive husband. And Bill and Regina finally talk with a surprise revelation from Bill.
Bill makes a move to show Regina how he feels about her. Tom tries to help a patient get away from her abusive husband, and Pamela begins having doubts when Mike changes plans on her at the last minute.
Pam goes to Alice for advice. John gets an unexpected visitor. Elsewhere, Tom questions a senior doctor about the treatments he prescribes his patients and Mike tries to charm a female colleague.
Pam's jealously questions Andi about the nature of her work with Mike. Bill seeks John's help tracking down Regina and an unexpected visitor shows up at Tom's door.