Season 1991, Episode 1: Caution: Murder Can Be Hazardous to Your Health - TV host Wade Anders murders rival Budd Clarke, who was blackmailing him over a past pornographic film role. Anders poisons Clarke's cigarettes, staging it as a heart attack. Columbo exposes Anders by revealing doctored surveillance footage of his office, where the hedges outside inexplicably changed overnight. Anders is arrested, unable to explain the visual inconsistency.

Season 1991, Episode 2: Columbo and the Murder of a Rock Star - Brilliant defense attorney Hugh Creighton murders his rock star girlfriend, Marcy Edwards, after discovering her infidelity and a blackmail attempt. He meticulously stages the crime to implicate her drummer lover. Columbo, however, unravels Creighton's elaborate alibi by revealing a traffic camera photo showing Creighton's associate, Trish, wearing a mask of his face while driving his car, proving Creighton was not where he claimed to be. This critical reveal exposes Creighton's guilt.

Season 1991, Episode 3: Death Hits the Jackpot - Down-on-his-luck photographer Freddie Brower wins $30 million in the lottery but, amidst a bitter divorce, asks his wealthy uncle Leon Lamarr to claim the prize to avoid sharing it. Secretly broke and having an affair with Freddie's estranged wife, Nancy, Leon murders Freddie to keep the entire jackpot. Columbo exposes Leon by revealing a chimpanzee's fingerprint on Leon's shiny Halloween costume medallion, proving his presence at the crime scene. Nancy, unaware of Leon's betrayal, inherits the full winnings.