Everybody loves the Easter Bunny. Everybody, that is, except the evil Irontail, who wanted the job of Easter Bunny for himself- but lost out to Peter Cottontail. A generation later, Irontail is back to take his revenge, teaming up with the ice-cold Jackie Frost in a devious plot to plunge the world into permanent winter.Now it's up to Peter Cottontail's son, Junior, to save the day. Away from home for the first time, Junior joins forces with Flutter, a "flight-challenged" bird, and Munch, a mouse who never met a meal she didn't like. Together, these three unlikely kid heroes set out on the adventure of a lifetime. Along the way, they'll test their friendship, travel to the edge of the Earth, and uncover the secret of the Clocks of the Seasons.
| Writing | Jenny Tripp | Screenplay |
| Writing | Jenny Tripp | Story |
| Directing | Mark Gravas | Director |
| Writing | Kirk DeMicco | Screenplay |
| Writing | Thornton W. Burgess | Book |
| Writing | Evan Gore | Screenplay |
| Production | Ralph Guggenheim | Producer |
| Writing | Kirk DeMicco | Story |
| Production | Evan Baily | Producer |
| Production | Eric Ellenbogen | Producer |
| Production | Nickole Kerner-Bobley | Associate Producer |
| Production | Sandra Walters | Producer |
| Editing | Daryl Davies | Editor |
| Production | Mary Hidalgo | Casting |
| Art | Deane Taylor | Production Design |
| Art | Suzanne White | Art Direction |
| Crew | Heather Lombard | Additional Writing |
| Production | Terri Douglas | Additional Casting |
| Production | Antony Zmak | Line Producer |
| Art | Robert Qiu | Background Designer |
| Visual Effects | Mark Gravas | Character Designer |
| Visual Effects | Steve Moltzen | Character Designer |
| Visual Effects | Dan Foley | Character Designer |
| Art | Steve Moltzen | Prop Designer |
| Art | Antony Zmak | Prop Designer |
| Art | Tim Pyman | Prop Designer |
| Writing | Christian Garland | Storyboard |
| Writing | Mark Gravas | Storyboard |
| Writing | Steve Moltzen | Storyboard |
| Writing | Stephane Portal | Storyboard |
| Writing | Tim Pyman | Storyboard |
| Writing | Suzanne White | Storyboard |
| Writing | Mike Zarb | Storyboard |
| Editing | Andy Canning | Additional Editing |
| Editing | Matt Lawrence | Additional Editing |
| Production | Phil Klaunzer | Production Assistant |
| Production | Richard Quan | Production Consultant |
| Production | Omar Khan | Production Assistant |
| Production | Matthew Street | Executive Producer |
| Production | David Taylor | Co-Executive Producer |
| Visual Effects | Mandy Fanning | Animation Coordinator |
| Sound | Magnus Fiennes | Original Music Composer |
