Clipped from Wikipedia: History: Sidekicks is a 1986-1987 martial arts TV series, a spin-off of the original Walt Disney one-time special, The Last Electric Knight. The series starred Ernie Reyes, Jr. as Ernie Lee, the Last Electric Knight, and Gil Gerard as Sergeant Jake Rizzo. Sidekicks aired on ABC Friday nights at 9pm and then Saturdays at 8pm.
Plot: Sergeant Jake Rizzo (Gil Gerard) is chosen by Sabasan as tutor of his grandson Ernie Lee (Ernie Reyes, Jr.), the last heir of an antique clan of special martial artists and a highly trained karate fighter.
Through the series, Ernie tends to often get into dangerous situations where bullies at school or in the streets of Los Angeles threaten him or his friends, or in dangerous situations where his adoptive father ends up needing his help after criminals which he has captured try to escape or try to harm him. With help of his quick moves, unique powerful skills and the clever advice of his deceased grandfather, Ernie manages every time to overcome all of the dangerous situations he gets into and manages to overwhelm his opponents.