Gold reveals to Professor Oak that Silver was the one that stole his Pokédex and Professor Elm's Totodile. Gold asks about the capabilities of the Pokédex, and then asks if he may have one of the remaining two. Despite Gold's begging, Professor Oak refuses to give him a Pokédex, explaining that he only gives them to Trainers that he trusts, whereas he does not know Gold at all.
To toughen his Pokémon up, Gold starts them on a rigorous physical training regime, forcing them to run several laps a day. When it begins to rain during a training session, Joey's Rattata falls off a ledge and into a river, and Gold jumps in after it to rescue it. He rescues Rattata, but is unable to get out of the river himself until Professor Oak's Ledyba saves him.
Afterwards, Professor Oak scolds Gold for over training his Pokémon, which results in Gold begging him for the Pokédex again. When Professor Oak asks him how he feels about his Pokémon, Gold replies that they are not just friends or comrades to him, but partners united by the same goal. Impressed, Professor Oak gives the Pokédex to Gold. When Gold mentions his search for his backpack, Professor Oak reveals that he found it by the river earlier, with Gold's Pokégear and Poké Balls intact (except for Polibo). With renewed vigor, Gold continues on his search for Silver, whose name is revealed when Gold notices it stitched on the inside of his glove which he picked up earlier.