Quick recap
Cooler, Frieza's older brother, sees his sibling's defeat as a stain on the family honor and comes to Earth with his Armored Squadron. Goku is camping with Gohan, Krillin and Oolong when he's hit from behind while shielding his son. Gohan looks after his father and the dinosaur Icarus but gets captured; Piccolo shows up to hold off the henchmen. Goku recovers, goes Super Saiyan and faces Cooler, who reveals a fifth form stronger than any of Frieza's. In the end, Goku throws Cooler's giant attack back and drives him into the sun, where the villain vanishes screaming in rage.
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