The shoe is definitely on the other foot now. However, despite giving Frieza a beating, Goku shows no signs of taking the final step to end his reign of terror for good. Said reluctance ends up being a mistake and leading to a major disaster. Frieza has saved his most powerful blast of all for last, but not for Goku. Instead, Namek is the target. If the planet is destroyed, it will take everyone but Frieza with it.