Obtained: Speak to Bulma in the Garden at Capsule Corporation during the Intermission main story objective talk to Chi-chi
Objective: Head toward East Ravine Area on the World Map
Head to Lucca Village from the World Map and head northeast to the East Ravine Area where you can find Raditz’s space pod. Jump into the crater where the ship was to find a mysterious chip and trigger a cutscene, which will complete the sub story.