Vin Diesel stars as Shane Wolfe, a Navy S.E.A.L. whose latest do-or-die mission pulls him into the perilous, adrenaline-charged world of... babysitting. This hard-as-nails warrior meets his match, and finds his heart, in a family of out-of-control kids. Assigned to protect the children of an assassinated scientist working on a secret invention, Shane is suddenly faced with juggling two incompatible jobs: fighting evil while keeping house. As he adds to his usual arsenal of wetsuits and weapons the new tools of juice boxes and a minivan, Shane not only must defeat a world-threatening enemy but also wrangle teen rebel Zoe, uplift sullen 14-year-old Seth and outwit 8-year-old Ninja-wannabe Lulu simultaneously keeping toddler Peter and baby Tyler out of mischief, not to mention harm's way. Shane finds out how tough it can be as he pits his courage against these new challenges... He soon realizes that he's also facing the most important mission of his life: becoming part of a family and bringing them all closer together.