The English dub for this episode is available through the Crunchyroll Dragon Ball Z collection . Trunks Saga / Androids Saga.
Trunks provides Goku with a heart medicine from the future to ensure he survives the coming conflict. Technical Details (Funimation Dub) Dragon Ball Z (Dub) Episode 122
Goku, Future Trunks, Vegeta , Piccolo, and Bulma . The English dub for this episode is available