In Paris, a young employee in the office of the US Ambassador hooks up with an American spy looking to stop a terrorist attack in the city.

Former CIA spy Bob Ho (Jackie Chan) takes on his toughest assignment: looking after his girlfriend’s three kids, who haven’t exactly warmed to their mom’s beau. And when one of the youngsters accidentally downloads a top-secret formula, Bob’s longtime nemesis, a Russian terrorist, pays a visit to the family.

A post-apocalyptic tale, in which a lone man fights his way across America in order to protect a sacred book that holds the secrets to saving humankind.