Hank is surprised by a visit from Mia and her slimy boyfriend-manager, which results in Karen learning Hank's of long-hidden dalliance with her stepdaughter; Charlie faces losing Marcy for good.

An end-of-semester mixer at his boss's house results in a Civil War-style duel between the host and Hank, which ends in catharsis for all concerned; Charlie and Marcy's house is sold on the same day their divorce papers arrive.

Hank takes Charlie on a bender to console him over losing his job, but they both end up having a near-death experience during a convenience store robbery; Karen hosts Becca and Marcy on a girls night out.

Hank's exploits with his boss's wife are exposed when Becca and Chelsea get into a campus brawl; Charlie scrambles to keep Marcy away from cocaine-addicted client Rick Springfield, jeopardizing his job.

A night of hedonistic abandon with one of his students and a pair of strippers ends badly when Hank is besieged by Charlie, an angry Rick Springfield, two of his other lovers, and his boss – resulting in an epic showdown.

Hank tries to set things right with Karen but his multiple romantic entanglements become ever more entangled; Becca calls out her father on the terrible example he sets for her; Charlie fights to keep Sue's favorite client.

A weekend visit from Karen is interrupted by trouble with Becca and her best friend Chelsea; Charlie is crushed when Marcy consummates her girlhood crush on rocker Rick Springfield.

Hank spends a bachelor weekend with an old buddy and shows him a debauched good time at a party hosted by Sue Collini and her eccentric husband; the rekindled relationship of Charlie and Marcy hits a speed bump.

Hank objects to Becca's new, more adult fashion sense, and drags Charlie to a strip club in an effort to discover the secret life of a talented student; Charlie and Marcy's house sale goes awry for an unexpected reason.

Hank attends a university mixer and consoles his jilted assistant the only way he knows how; Charlie celebrates his first talent signing at his new agency by falling into the arms of his boss, Sue Collini.

Hank becomes a reluctant college professor and immediately lands in hot water over a too-honest critique of a student's work; Charlie becomes overly involved in Marcy's romantic life, with negative results.

Hank struggles to fulfill his duties as a now-single father to the increasingly rebellious Becca, who brings him into the orbit of an academic circle; Charlie moves back in with Marcy even as they work out a divorce.