Scrat meets his son Baby Scrat and experiences the pure joy of being a new parent—until Baby Scrat sees The Acorn for the first time.

Scrat demonstrates for Baby Scrat how to plant The Acorn, but Scrat is really the one being taught a lesson.

Scrat and Baby Scrat run after The Acorn into a dark cave, which resembles a creepy funhouse hall of mirrors.

Thanks to a dodo bird, Scrat and Baby Scrat end up on opposite sides of a log held up by a single branch.

The Acorn goes flying off a cliff. With it seemingly gone forever, can Scrat and Baby Scrat live in harmony?