When Pebbles' plate got broken during a dispute with Bamm-Bamm, they head to China (which is unlike the China we know today) in hopes of getting their plates fixed. However, what happened next is that they stumble onto a war zone between General Fork and General Ladle. So, they try to bring peace into the land, which they're successful at. And for that, they receive a reward that helps repair Pebble's plate.