Shell-shocked after losing a foot during his tour in Afghanistan, Captain Tom Forsyth returns to face new battles on his home front. His estranged mother, a renowned horse enthusiast, has always put horses first and family last. But now she's being blackmailed for a hefty sum every week and being forced to make her horses lose. Using the skills he honed in the military, Tom sets out to find and defeat a hidden enemy before his mother's reputation is ruined, and he ends up back in the crossfire.