During the first winter after the Monster Apocalypse, Jack and his buddies prepare for a monstrous Christmas celebration, but a supervillainess steals Jack's prized monster-slaying weapon, his Louisville Slicer, and he vows to get it back.
"Jack teams up with the evil King Wretch in order to convince his friends to stay with him instead of going in search of others who may have survived the monster apocalypse"--
Dash, Carly, Gabriel, and Piper visit a planet made up of molten lava and run entirely by robots where they must find the second element of the Source that will save the Earth.
The Voyagers have made it to the last planet but must acquire a seventh element, combat dragons and an alien clone, and face serious illness before returning to Earth.
A spaceship piloted by children travels to Planet Infinity where the youngsters must navigate underground tunnels in search of the fourth element of a power source needed to save Earth.