Manny, Diego, Sid, and Shira are settling into a quiet life with their families when a meteor shower lights up the sky. One of the meteors lands in a nearby valley, revealing a strange glowing crystal. When young Scrat (now a curious but clumsy inventor) touches it, the Earth’s magnetic field shifts again —this time causing the sky to shimmer with auroras... and a massive celestial body to hurtle toward Earth!
I need to check if "Collision Course 20" is an existing movie. A quick search in my knowledge base: "Ice Age: Collision Course" is the fourth movie released in 2016. There's no official part 20. The user might be looking for a continuation or a fanfic. Alternatively, maybe they meant "Ice Age: Dawn of the Dinosaurs" is the third one, and Collision Course is the fourth. The next in line could be "Ice Age 5", but that's "Collision Course" as the fourth. Wait, no, the fifth is "The Flood". So maybe the user is confused about the numbering.
The team learns a rogue comet is on a collision course with the planet! But this time, the danger isn’t just Earth—it’s Mars . The comet is pulling the planet closer to the Red Planet, which could cause catastrophic volcanic eruptions. The characters join forces with a team of prehistoric scientists (including a snooty saber-toothed theorist named Dr. Zeta) to launch a mission.