The Substitute 2: School's Out
IMDB: 5.2 1h 29m
Overview: When teacher Randall Thomasson is killed during a carjacking, an unexpected visitor shows up at his funeral - his estranged brother, Karl Thomasson (Treat Williams). An ex-Green Beret turned mercenary. Karl signs on as a new substitute teacher in order to investigate Randall's murder.
