According to Vert, Jack disappeared years before the events of the show take place. In a flashback, Jack reported how he was trapped after entering a storm shock and was captured by a Red Sark known as Tors-10 and was forced to work as a slave. Jack eventually escaped for good when Tors-10 and his arena were destroyed in Gladiators.
Six months later, Jack eventually reunited with his son and met the Battle Force 5 in the Clockwork Battle Zone from Gearing Up. Though he was initially untrusting of his son's help, he soon accepted the team's assistance in finding what would be revealed to be a Red Sentient Mobi. However, it is later revealed that he cannot return to Earth with Vert and the others because Tors-10 had planted a tracking beacon on him at a molecular level and Krytus's group had picked up the signal.In Full Revolution Jack goes to the Primordiverse via the shadow zone and collects the meta key with the intent of stopping the Karmordials from returning.