Many criminals made the mistake of underestimating Lieutenant Columbo, a homicide investigator with a crumpled trench-coat and a beat-up car, who certainly acted as an incompetent bumbler. But he was so polite to every suspect, and he talked so much about his wife (who we never got to see on any episode, but who many believe later had her own show, starring Kate Mulgrew, later of Star Trek: Voyager fame) that he lulled even the shrewdest murderer into a false sense of security. And although the audience had witnessed the murder in the beginning of each episode, it was still a surprise to see what mistakes the killers had made during the seemingly perfect murder.
After spending the summer with his mother in Philadelphia, Dawson returns to Capeside and meets a beautiful, outgoing, young woman, named Eve Whitman, on the bus from Philadelphia. Eve soon brings trouble to Dawson's ho-hum life when he accidentally wrecks his father's boat during an outing with her and tries to come up with $3,000 to repair it before Mitch finds out. So, Eve helps out by throwing a rave party at the Leery house with strippers from the club she works at. Meanwhile, Joey, who has frozen Dawson out all summer for forcing her to rat out her father, realizes that she still has feelings for him again when they meet during the first day back at Capeside High as juniors. While working at the Capeside Marina, Joey deals with the come-ons from her sexist boss Rob Logan. Jen gets more than she bargained for when she tries out for Capeside High's cheer leading squad and faces off in a war-of-wits against the mean-spirited head cheerleader, and acquires her position. Also, Mitch gets a new job as Capeside High's varsity football coach, and a new charismatic, but very stern, principal, named Howard Green, arrives to administrate the school.
云南公安边防部队为破获一宗特大走私贩毒案，展开了一系列扣人心弦、斗智斗勇的“战役”。该剧以此为主线展开故事，剧中，“女一号”范志博饰演的是一位有着过硬的军人素质、同时满怀一腔保家卫国热血的中尉女警官杨欣欣。 在一次办案过程中，杨欣欣结识了被毒贩挟持作为人质而险些丧命的医学专家陈天瑞，并成为朋友。通过陈天瑞，杨欣欣也认识了陈的表哥刘志勇。原来，杨欣欣与刘志勇早有渊源。小时候杨欣欣的一次失足落水，救起她的人正是刘志勇。 杨欣欣对刘感激不尽。然而随着案情的进一步发展，在警方掌握了大量线索后，刘志勇大毒枭的真实身份渐渐浮出水面……
临近新年，海舟市老牌商场罗百百货突然发生沉降事故，致使13人被困地下。这场时间与生命的赛跑，带来的是人性、道德与信仰的重重考验…….
