3 Ninjas Knuckle Up is a 1995 American martial arts comedy film and a sequel to the films 3 Ninjas and 3 Ninjas Kick Back. The film was directed by Sang-ok Shin.
Samuel "Rocky" Douglas (Michael Treanor), Jeffrey "Colt" Douglas (Max Elliott Slade), and Michael "Tum-Tum" Douglas (Chad Power) defend "Truth, Justice and the American Way", once more — this time, protecting a Native American village and the rest of society against a Toxic Waste Company.
Rocky, Colt, and Tum Tum appear younger than they were in the 3 Ninjas Kick Back because 3 Ninjas Knuckle Up was actually shot in 1992, a year after the first film was shot. Although it was filmed a year before 3 Ninjas Kick Back, and features the same three actors who played the ninja brothers in the first film, it was released afterwards. 3 Ninjas Kick Back, which replaced two members of the original cast, was released first due to the delay of Knuckle Up. In some scenes of 3 Ninjas Knuckle Up Rocky, Colt, and Tum Tum look older because these were filmed in 1995 after the filming of 3 Ninjas Kick Back. Rocky has braces and is taller with a deeper voice, as does Colt look taller and has a deeper voice in these scenes.
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