The main series tells the adventures of Chilean boy Mampato, whom one day receives a telepathic message from an alien called Xseturlz (Xse), asking for help.
After many adventures including a time travel to Earth's Roman Empire, they win the battle and take back control of Xse's planet.
He asks for a ride back home but he gets something more: the "space-time belt", the fantastic device that allows travel to anywhere in time and space.
The first journey that Mampato takes is back to the prehistoric period, where he meets Ogú, a strong caveman.
In another adventure, Mampato goes forward to the 40th century, where he meets another recurring character: Rena, a beautiful girl with psychic abilities.