Oh takes it upon himself to introduce Christmas joy to his fellow Boovs. Unfortunately, his well-meaning mission nearly destroys the city.

Picking up where the 2015 film left off, this coming-of-age buddy comedy follows fearless Tip and overenthusiastic Oh, as they navigate the crazily combined human and alien culture they live in, finding adventure everywhere they go.

In order to save her siblings, a young woman takes on her father and the powerful entity known as Gamemaster, who ensnares humans into diabolical plots while her species gambles on the outcome.