Birthday boy Sean and his sister, Lisa, plan to spend the weekend with their dad. But when he's called into work, they both decide to secretly tag along.

Terry's latest mission brings him and the stowaways to the galaxy's best wing spot, where ruthless killers, an old partner and intergalactic chaos await.

Terry and the kids race through space to make it home before Mom does. Back on Earth, Lisa and Sean learn the truth, and an unwanted visitor appears.

When Terry goes missing, Tess leaves Lisa and Sean at home with grandma to rescue him alone... unless the kids can find their own way into space.

To win the battle, the Hendrixes must find and destroy the person who's secretly controlling the Beta Bots — with a little help from an unexpected ally.