McGarrett must prevent a mob war by tracking down an unknown hitman and his intended target.
Looking for work, Richie, Potsie, and Ralph agree to fix the fence of an attractive divorcee. When the woman leaves for awhile, Potsie and Ralph decide to take off, as well, leaving Richie to finish the job by himself.
The Evans family's joy at finally getting to meet J.J.'s girl Henrietta is shrouded by J.J.'s declaration that his immediate future could include Henrietta and matrimony.
The camp prepares for a visit from General MacArthur. Klinger dresses as the Statue of Liberty as the General's jeep drives through the camp. MacArthur is so impressed, he salutes!
Matt Dillon is sentenced to life imprisonment of hard labor for shooting a fugitive in the town of Bedrock.
Street's partner, officer Rob Duran, is killed in the premeditated police assassination by two brothers bent on revenging their father's death. That and subsequent police killings serve to shape the psychology of Lt. Dan ""Hondo"" Harrelson's newly formed Special Weapons and Tactics team, ""S.W.A.T."" The team's task is to combat high risk, contemporary, urban crime as a strike force. The team consists of James Street, David ""Deacon"" Kay, T.J.. McCabe, Dominic Luca, and Harrelson. ""S.W.A.T.""'s first assignment is an acid test of their ability to survive as individuals and as a team. Their rigorous training is literally a fight against time.
Tim has become rather flabby while the others have been away fishing, but trims himself down thanks to a brainwashing radio DJ and enters the Miss Housewife of the Year Contest.
After a severely injured test pilot is rebuilt with nuclear-powered bionic limbs and implants, he serves as an intelligence agent.
While an accused thief sits in jail waiting for his lawyer to arrange bail, Kojak tries to decipher a phrase heard during an unsuccessful attempt to steal a paint company truck.
Emily agrees to help operate a children's summer camp and tries to persuade Bob to be one of the counselors.
Caine goes searching for Danny, with Danny's son and a woman Danny Jr. has found out is his mother, with riders pursuing them, and is forced into an Indian death match along the way.
A con-man tricks Ted into setting up a broadcasters' academy. When he finds out he's been had, he asks Lou, Mary and Murray to be the faculty and give the semester's opening lectures.
Edith is reunited with her childhood sweetheart when she returns to her hometown for a wedding.
Lamont has had a chronic headache for three days and isn't sure what's causing it. A doctor suggests that Lamont consult a psychiatrist since the cause may be stress. Once at the psychiatrist's office, the doctor determines that Fred is the cause of Lamont's headaches.
Felix is upset when he learns that his high school girlfriend is now a grandmother.
The cases of an easy-going ex-convict turned private investigator.
Ed would rather fix his aching shoulder himself than go to see a doctor.