High energy levels and some genuinely hilarious set pieces make this kids' alien-invasion romp a lot more fun than expected. It's not, erm, rocket science, but it's a thoroughly entertaining ride from start to finish. Tom (Jenkins) is a surly teen who's a lot smarter than his grades indicate. But his parents (Nealon and Vigman) plan to whip him into shape with a family fishing holiday with sisters Bethany and Hannah (Tisdale and Boettcher) plus cousins (Butler, Young and Young), a goofy uncle (Richter), sassy Nana (Roberts) and Bethany's smarmy too-old boyfriend (Hoffman). At the isolated lake house, the kids discover that they're under siege from pint-sized aliens.