【明報專訊】Scrat (Chris Wedge), the cheeky sabre-toothed squirrel, tries to clutch at an acorn in every Ice Age movie. It appears that a catastrophe is destined to happen whenever he tries to store a nut. In Ice Age: Collision Course (《冰河世紀：隕石撞地球》), it accidentally activates a spaceship frozen in a glacier when its precious acorn is wedged into a control lever and sets the spacecraft off. The spaceship goes out of control. That triggers a series of cosmic events, including the collision of two planets, which results in a meteor shower shooting towards Earth! The world of Ice Age is in danger!