The Substitute: Failure Is Not an Option

Watch The Substitute: Failure Is Not an Option (2001) online on iFILM. In the fourth entry of the franchise, director Robert Radler sends ex-mercenary Karl Thomasson undercover into a military academy, posing as a teacher to root out a criminal conspiracy operating among the cadets.

The threat is a neo-Nazi cell called the Werewolves, with protection running up to the officer corps. Treat Williams plays Thomasson with the same no-nonsense physicality that has carried the series, and the film delivers the lean action its audience expects.