Seniors take on a drug firm in a class-action case handled by the grandstanding Crane. Also: revenge motives are raised in a murder trial; and medical ethics are at issue in a civil suit.

Lori, along with Denny and Shirley, defends a school superintendent who fired two science teachers because they refused to teach creationism and is now being sued by them. Alan learns his assistant has expressed concern about their work relationship. While dealing with that issue, Alan discovers that his client Bernard Ferrion, who killed his mother, needs legal help again. One of the members of the firm is fired and learns that a close associate is not too keen on lending a supportive hand.

Brad becomes attracted to his client who being sued for having a relationship with her boss merely for financial purposes. To make matters more difficult, Brad convinces himself that she is lying about her being a lesbian. Alan is asked to second chair on Denny's trial case where a doctor is being sued for prescribing a drug that has not been FDA approved. While working on that, Denny is on a personal mission to prove that he is a competent attorney. Meanwhile, the staff tries to deal with Alan's out-spoken new assistant, Catherine Piper.

Denny takes Alan to Nimmo Bay, British Columbia, Canada, to help him get over his breakup with Tara. Catherine confesses to Bernard's murder. Sara and Garrett take extreme measures to help Denise challenge her husband's alimony demands in their divorce proceedings.

Denise finds herself in a difficult position when an auto-injury case she neglected for three years comes up for trial and she is unprepared. While Garrett researches, he meets Cassie, a young paralegal whose strange sexual tendencies hide a painful past. Meanwhile Denny learns he must apologize to Lori or face a sexual harrassment suit, and Alan takes Sara out for dinner and a "show."

After kidnapping a witness and physically assaulting a priest, Brad is put on trial and enlists the help of Denny and Shirley to bail him out.

Meanwhile, Alan's hands are full with his secretary's financial troubles when her credit card company charges ridiculous interest rates putting her $50,000 in debt.

Shirley, Paul and Brad batten down the hatches as Bev files for divorce hours after her marriage to Denny, and demands half of his assets.

Alan helps defend an old friend who was fired for smoking on her private time.

Shirley once again helps Professor Cabot, whose research into human sexual behavior gets him into trouble when he's caught with a prostitute. Marlene and Denise continue their fight for the spot to become partner by trying to assist.

Meanwhile, Denny takes Alan to LA when he pays a visit to the West Coast branch of Crane, Poole & Schmidt, but his motives become clear once Alan meets Barry Goal. And Brad is shocked to discover his niece is arrested for participating in a drug "pharming" party.

Terminally ill Daniel Post needs Denise and Shirley's help after running afoul of the law. Meanwhile, Alan defends Jerry after his driving habits lead to trouble.

Halloween brings Denise startling news about Daniel Post; Denny meets Bethany's mother; Jerry needs Alan's help with a federal jury matter; and the fallout from the Scott Little case continues for Coho when he's sued by the Hooper's nosy neighbor.

At the courthouse, Alan runs into an old flame and coworker, who's looking very guilty in a bloody wedding gown; Claire reluctantly defends a cell-phone thief; and Denny's prejudices are driving a wedge between him and Bethany.

Alan defends Brad and Denise's priest after he's arrested on their wedding day on charges of sheltering undocumented immigrants; Jerry helps a woman with a pet duck who was evicted from her apartment; and Denny counts a coveted sports trophy among his possessions.

A new lawyer at the firm draws instant attention from Alan, who is busy helping Jerry and Katie on a murder trial and fielding an offer from Gloria to be the father of her child. Meanwhile, Clarence and Lorraine represent a woman whose affair with her pastor resulted in a loss of her faith.

Shirley takes part in a case involving a radio personality's dismissal for using disrespectful language; Denny needs Alan's help after getting arrested; Katie wonders if Lorraine is hiding something.

Carl helps Shirley's friend Andrea when she blames a company for botching the process of turning her mother's ashes into a diamond; Whitney takes on a high school over a student's untimely death; Clarence represents a woman who's suing her pastor after he ended their affair; Denny and Alan prepare for their Coast Guard test.

Denny is head over heels for a cattle rancher who wants the government to stop the sale of cloned meat. Meanwhile, Shirley asks Alan to sue the Democratic Party when her nephew--a delegate--disagrees with his state's primary vote.

A close call for Denny involving prescription drugs inspires Alan to go after a pharmaceutical company for its unscrupulous advertising tactics. Meanwhile, Carl defends Shirley's 17-year-old granddaughter after she's caught voting illegally, and Jerry and Katie help a girl who was sexually assaulted in a private detention facility.

Shirley defends the notorious Catherine Piper after she accidentally blows up her doctor. Meanwhile, Alan and Denny take a break from the office, but they are out of their element at a dude ranch in Utah.

Shirley's quiet Thanksgiving with Carl becomes considerably louder when she opens her door to other members of the firm, including Alan, Denny, Jerry, Katie and emotionally unstable partner Edwin Poole, who brings his 6-year-old foster son.