It’s apocalypse time for the pre-historic gang as they learn about a giant meteor all set to hit the earth, thus causing their extinction.
This meteor is a result of Scrat’s activities who accidentally sets things in motion.
In the meanwhile, while the herd is unaware of the upcoming disaster, Sid is dumped by his girlfriend Francine before he proposes to her.
Buck on the other hand finds a stone that is like a prophecy, mentioning the arrival of doomsday.
With all that’s happening, can Buck, Sid, Manny and Diego avert the calamity that reckons