Lucy uses Uncle Harry's home for a Greek Wedding Party thinking he's gone out of town for the weekend, then tries to convince Harry that it's a surprise birthday party for him.
McGarrett and the Five-0 search for a busload of kidnapped school children as well as the people responsible.
A routine "see the woman" call leads Officers Malloy (Martin Milner) and Reed (Kent McCord) to a hippie hangout where a 16 year-old runaway girl is seriously ill from the effects of narcotics, in "Log-61," this week's episode of ADAM 12. After talking to Mrs. Ross (Dorothy Neumann) about the "strange" people living next door, the officers find Carol (Cynthia Hull ) hiding in the back yard. In other action, the officers participate in a stakeout at a parking lot where a dope peddler is to meet his customer. The cast includes Philip Capin as Ray, hippie friend of Carol's, William Stevens as Officer Walters, Claude Johnson as Officer Brinkman, and Jimmy Mathers as Michael-James Wixted as the two little boys, who report a prowler.
Helen Crump and her students convince a crotchety old school principal that today's youngsters aren't so different from his own generation.
Helen and her students students try to close the generation gap by showing that today's kids are no different than yesterday's.