Senior partner Carl Sack clashes with Denny after the latter is arrested. Meanwhile, Shirley needs Alan's help when a university wants a donation, and Jerry assists another new attorney in a homicide case.

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.

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.

Shirley answers the call when a military man, who is an old friend of Denny's, comes under fire for admitting he's gay; Alan endures another bout of incoherent speech; Katie helps a new associate with a bullfighter's custody battle.

A woman asks for Alan's advice on how to kill the man who murdered her daughter but was acquitted by reason of temporary insanity; Katie and Jerry try to overturn a child-molester-registry law to save a falsely accused client; and Lorraine tries to help Alan overcome deep-rooted childhood fears that cause him to speak gibberish whenever she's around.

Alan pushes a temporary-insanity defense when Patrice is accused of killing the man who murdered her daughter; Denny finds fault with an associate's physique; Jerry helps a kindred spirit find a personal treasure.

Denny needs Alan's help after using an employee's weight as a reason for dismissal; Clarence is upset by an Internet posting of him as Clarice; Katie and Whitney work on a murder case involving racism and the police; and Jerry is anxious about taking a relationship to the next level.

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.

Shirley's granddaughter gets kicked out of school for making a social statement; Alan and Denny take matters into their own hands to help a flood victim; Carl makes an important decision about his future; Lorraine makes a shocking revelation to Shirley.

Alan defends Clarence against a bank in a foreclosure case; a client challenges Denny's claims about the firm's commitment to the environment; concerned parents try to keep a teen from watching porn; Jerry's love life hits a rough patch; Carl weighs in on the fate of Lorraine's employment at Crane, Poole & Schmidt.

Shirley and Carl worry about the firm's reputation when Denny turns down Alan's assistance in order to go it alone on a headline-grabbing murder case. Meanwhile, Jerry and Katie help a woman who claims her husband's employer caused their divorce.

Shirley and Alan face off in court when they're on opposite sides of a case involving stolen sperm; Jerry helps his objectophile ex-girlfriend when she loses her teaching job for inappropriate contact with a student.

After enlisting Alan and Denny to help her friend, who's suing her town for its decision to build a nuclear power plant, Shirley discovers that the opposing counsel is her college sweetheart, a fact that is not lost on Carl Sack. Meanwhile, Leigh warns Katie to steer clear of her boyfriend, Jerry.

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.

Alan and Jerry go after a tabloid talk show when a women is murdered for turning down a marriage proposal on the air. Meanwhile, Denny hopes a dinner invitation from Shirley will rekindle their long-ago romance, and Lorraine advises Alan to seek help after he confesses a childhood transgression.

Alan fields a difficult request from Shirley after her father suffers an injury while in the late stages of his battle with Alzheimer's; Carl represents a group of Nantucket residents who are concerned about homeland security; Jerry's new girlfriend sues him for sexual assault.

It's a lawyer's dream come true for Alan when he presents an appeal to the U.S. Supreme Court in a case involving a mentally challenged man who was convicted of statutory rape. Meanwhile, Lorraine shares startling news with Katie about Jerry's girlfriend.

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.

Jerry comes to the aid of his ex-girlfriend when she's collared for prostitution; Carl and Shirley help a woman who's suing the church for prohibiting her from becoming a priest; Denny is wooed by power brokers to run for president.

Alan and Denny mark their acceptance into the Auxiliary Coast Guard, but their relationship is tested when a Massachusetts town wants Alan to help it secede from the U.S., and Denny represents the opposition.

Alan answers a call for help from Bethany Horowitz in a suit against a tobacco giant, but he suffers a crisis of confidence when the opposing counsel turns out to be an old girlfriend. Meanwhile, Denny is plagued by a case of performance anxiety.

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.

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.

After an old girlfriend hires Alan to help her husband beat a murder charge, he faces a moral and professional dilemma when his lingering feelings for her elicit a secret desire for a conviction.

Alan and Shirley prepare for a fight with the military on behalf of a man whose brother died under suspicious circumstances. Meanwhile, Jerry helps his sister in her search for the identity of the father of her son, who was conceived through an anonymous donor.

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.

Alan and Denny sue the USDA on behalf of a cattle rancher who wants to test her entire herd for mad cow disease; Jerry's consideration to make partner hinges on an up-or-down vote by the firm's panel, which includes Paul Lewiston.

Alan and Shirley help a minor in a legal battle over her pregnancy, and Jerry takes up his own defense when he faces aggravated-assault charges after an encounter with a bully.

Carl and Denny go to Virginia to defend a prison guard who shot a death-row inmate when a lethal-injection execution was botched. Meanwhile, Alan and Shirley help a woman who says she lost her job after voting for John McCain.

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.

When Denny receives bad news about the state of his Alzheimer's, Alan goes before the Massachusetts Supreme Court to plead for access to an experimental drug that could help his condition. Meanwhile, Jerry and Katie try to help a girl get into Harvard after her SAT scores arouse suspicion, and Catherine Piper returns.

Financial problems may force Crane, Poole & Schmidt to be put up for sale. Meanwhile, Alan petitions the Supreme Court for Denny's access to a non-FDA approved medicine; and Shirley and Carl plan their wedding.

Financial problems may force Crane Poole & Schmidt to be put up for sale in the series finale, which also finds Alan petitioning the Supreme Court for Denny's access to a non-FDA approved medicine, and Shirley and Carl planning their wedding.