Navy SEAL Shane Wolfe is handed a new assignment: Protect the five Plummer kids from enemies of their recently deceased father -- a government scientist whose top-secret experiment remains hidden in the kids' house.

Cass, a high-powered attorney and single mother of two, is on the hunt for a new nanny after her precocious kids ran off the last one.

Nico is a famous actor in Argentina, but in New York, nobody takes notice. He needs to juggle bartending, babysitting and odd jobs to keep himself afloat. But when old friends from Buenos Aires come to visit, he needs to juggle the image of his old life with the reality of the struggling actor in New York City.

If event planner Celeste Everett is going to save her business and give her niece a happy Christmas season, she is going to need help. When the nanny she hires turns out to be a man, Celeste surprisingly realizes she may have also found Christmas love for herself.