The firm takes on two milestone cases. First, Shirley and Denise represent Christian and Wiccan parents who are outraged by a public school's Halloween celebrations, but the case takes a turn for the worse when the clients begin arguing amongst themselves. Meanwhile, Denny and Alan's friendship is tested when Alan helps Cassie sue the US military for the loss of her brother.

Denny once again goes head-to-head with his non-son, Donny, when he shows up in his new role as a Lawyers Without Borders representative. But Alan finds it difficult to support Denny's defense when Denny makes light of the case.

Meanwhile, Marlene Stanger, known as "The Squid," is hired at the firm, and immediately attracts Alan and repels Denise.

Shirley finds an unlikely--but familiar--foe in court when her ex-husband, Ivan, wants to get rid of his postnuptial agreement to his current wife. Meanwhile, Coho engages in questionable practices in an important case, and Denny's online date avers that size doesn't matter.

Alan takes on the United States of America based on a client's claims of torture for two years at a detention camp; Jerry pleads with Shirley to rehire him; and Claire defends a lawyer who was tricked into committing a crime by a radio prank.

Denny believes a bet against Carl Sack in a cockfighting case is a sure thing; Alan and Lorraine represent an HIV-positive girl in a suit against her school; a widow hires Katie and Jerry after her husband commits suicide.

Denny is arrested on concealed-weapon charges after shooting a man who tried to rob him and Jerry. Meanwhile, a case gets personal for Alan when he tries to help a sex surrogate in a custody battle for her daughter.