Marty McFly only had to be sure his mom 'n' dad fell in love. Colter Stevens (Jake Gyllenhaal) has to keep a bomb from killing a trainful of Chicago commuters, identify the bomber, foil his plan for detonating a dirty bomb in the heart of the city, connect with a pretty passenger (Michelle Monaghan), and do it all within the same eight minutes that a secret military time travel program called
Source Code permits him. In his sophomore ...