A self-loathing, alcoholic writer attempts to repair his damaged relationships with his daughter and her mother while combating sex addiction, a budding drug problem, and the seeming inability to avoid making bad decisions.
Hank's reunion with Karen doesn't go quite as he planned. Meanwhile, Hank gets hired by the "Santa Monica Cop" showrunner, and a reporter asks to interview Hank for his college paper.
Hank gets frustrated with his "Santa Monica Cop" coworkers on his first day in the show's writer's room, and he gets a surprise when he visits Levon's apartment. Meanwhile, Charlie meets Rath's new assistant; and Karen gets an unexpected surprise.
Hank gets his first episode assignment, much to the dismay of coworkers Terry and Hugh. Meanwhile, Levon tries to bond with Rath's assistant; Charlie attempts to patch things up with Marcy; and Karen considers giving up on Hank.
Hank and Levon help Julia celebrate her new role. Meanwhile, financial trouble adds to Charlie and Marcy's marital unrest, but a new client may put Charlie back in the black; and Levon tries to get some alone time with Melanie, but the Director keeps getting in the way.
Levon enjoys a night with Nikki, while Karen, Hank and Marcy are forced to endure the company of Nikki's creepy friend. Meanwhile, Charlie gets in over his head with a new client.
A "Santa Monica Cop" kickoff party is hosted by Rath, where Hank conducts an intimate notes session with the show's leading lady, and Hashtag Black eyes Julia. Meanwhile, Charlie manages head-case client Goldie; and Stu makes Charlie an offer.
Rath demands a rewrite of Hank's 'Santa Monica Cop' script. Julia's new boss, Dr. Dan, gives her some career advice, but Levon and Hank have other ideas. Charlie and Marcy consider Stu's offer - until Atticus' old rock 'n' roll butler Krull offers an alternative solution to their money woes.
Hank has problems with Hashtag Black. Stu's offer leads to fisticuffs.
Hank recalls turbulent times with Karen, a confused Becca, and their days with a happier Charlie and Marcy. Meanwhile, a nun helps Hank put things into perspective.
Hank entices Karen to have dinner with him, but Julia interrupts their romantic evening. Later, Charlie, Marcy, Krull, Levon and his new friend bring even more drama to the night; and chaos ensues when Stu assaults Charlie's manhood.
Hank might soon be out of a job. Becca makes a big announcement.
Hank makes a life-altering decision. Series finale.