Charlie Brown, Snoopy, Lucy, Linus, and the rest of the beloved Peanuts gang make their big-screen debut, like they've never been seen before, in state-of-the-art 3D animation. Charlie Brown, the world's most beloved underdog, embarks upon an epic and heroic quest, while his best pal, the lovable beagle Snoopy, takes to the skies to pursue his arch-nemesis, the Red Baron.

The good times begin with a certain big-nosed beagle playing Cupid and does not stop until Charlie Brown opens his mailbox one last, eager time. Homemade Valentine's, class parties, the tug of romance and the allure of chocolate set the mood for these school children.