The Herculoids

After killing two creatures with a treasure chest, pirates bury it on Amzot. When the Herculoids approach, Dorno is captured and held hostage.

Sarko captured Igoo for unknown reasons, attacked Zandor with sleeping gas, and captured Dorno and Tundro as well.

An alien spacecraft hovers over Amzot, dropping mechanical pods onto the planet. Meanwhile, Dorno, Igoo and Gleep, on a mission to get firewood, see the robotic pod creatures as the pods open up and start attacking the trio.

A group of powerful robots, led by a larger robot, attack the Herculoids.

Krokar, leader of the Beaked People, stages an invasion on the Winged Monkeys, purposely letting one escape so he can capture Zandor and rule Amzot.

Sta-Lak flew over Amzot; upon seeing Zandor and Zok, Sta-Lak turned his ship invisible to avoid detection, with the intent of taking Tara prisoner.