The death of an elderly man, who was trying to find the one responsible for the torture killing of his son in 1973 Chile, leads to a high-level foreign colonel.
Andy's attempts to be alone with Mary Simpson are thwarted by Barney's presence and Barney tells everyone that Mary Simpson and Andy are getting married.
A barber from Raleigh gives Floyd the chance to be the proprietor of a two-chair shop, but it turns out that he is actually a bookie trying to avoid the heat.
When Aunt Bee goes to visit Aunt Louise, Andy and Opie are left to fend for themselves, which leads to grand misunderstandings and some much needed apologies.
The mayor of Mayberry expresses that he has absolutely no faith in Andy and Barney's efforts to catch a cattle rustler, so he hires a State Investigator
Barney's courage and confidence is shattered by produce peddlers, but with Andy's assistance he discovers the tools he needs to use his proper authority.
Mayor Stoner adopts a frugal attitude concerning the local marching band, proclaiming it is a disgrace, and refuses to fund it's trip to the state competition.
Hondo, Deacon, Tan and Cmdr. Hicks pursue a fugitive in Tokyo; the rest of the SWAT team investigates any contacts the criminal may have in Los Angeles.
The team responds to a kidnapping case when a prize boxer's wife is taken; the young man Hondo has been helping wants more paternal rights over his infant son.
A teen's abduction brings the team to an old political extremist group; Hondo and his girlfriend get into an argument about a community center's guest speaker.
A hotel full of civilians is put in danger when gang leaders try to flee the building; Luca's brother, a freelance reporter, jeopardizes the team's mission.
The team's former unit leader suddenly vanishes and try to prevent him from hurting himself, which in part reveals their untold mental and emotional stresses.
An escaped convict plans to kill everyone responsible for his incarceration; Chris deals with a case of corruption after she arrests the son of a powerful man.
Hondo, his father and teen ward face the city's difficult history of racial tension; the team goes after El Diablo's drug syndicate and a group of Jihadists.
Danny reexamines a case after a woman passionately raises her concerns regarding the police's inability to apprehend her son's killer; Eddie is shot on duty.
Danny is forced to ask Victor Lugo for help to find an escaped criminal; Frank tries pushing Jamie into taking the sergeant's exam; Erin makes plans for a date.
A data-tracking company won't unlock a suspected terrorist's phone; Erin enlists Danny and Baez's help after she gets information from a disreputable source.