San-nen Go ni Kaketa TokkunSan-nen Go ni Kaketa Tokkun, lit. “Goku’s New Technique, Instantaneous Movement! Special Training Staked on 3 Years From Now”) is the fifty-eighth episode of Dragon Ball Z Kai. This episode first aired in Japan on May 23, 2010.
Goku learned the technique from the Yardrats sometime after the destruction of Namek and prior to his return to Earth in the Trunks Saga. Yardrats, the inhabitants of Planet Yardrat, supposedly know this technique, as they taught it to Goku.