The Rookies are still mired in teen-age drug rackets which seemed to be the case for most of the last season. When a youth leaps to his death, the enlist the aid of another kid to trace the drug source.
Mike is severely wounded and Terry is taken hostage by members of a gun stealing ring trying to gain freedom from their captured leader.
Songs: (Unknown artist) -- "The Rookies Show Opening"
Young crooks Pat Stevens and Glen Barton rob ticket agent Brewster and shoot rookie Chris. The scene is witnessed by mailman Charlie Brooks, who is adamant about not getting involved. Eventually his wife, Nadine, and daughter, Stacy, encourage him to cooperate with the rookies, and finally, the criminals are apprehended.
An attractive young policewoman becomes the victim of bitter resentment with the department when her protective male partner loses his life in a shootout.
A rookie accidentally overpowers a professional assassin and is named ""hero"". The assassin vows to kill the rookie and escapes with Jill as a hostage, offering to exchange her for the rookie.
Former Vietnam helicoptor pilot Mike Danko is kidnapped by a POW who is focused on revenge.
The mother of a doctor who works in the same hospital as Jill is mugged and dies and the doctor takes it upon himself to get revenge.
A gambler kills his creditor and is witnessed by Jill Danko whom he and his accomplice must now do away with. Another episode dedicated to nurse Jill Danko.