Ep 12. Time-Warp Heals All Wounds

While our heroes are stopped at a Pokémon Center, Squirtle runs off?never a good idea when Team Rocket is lurking nearby! May finds Squirtle at an empty train station with an old lady, Edna. Edna's granddaughter Katrina tells May (and an eavesdropping Meowth) the story: Grandpa Jonathan left to become a Pokémon doctor, but Grandma Edna didn't want to leave town. She changed her mind when she realized they were going to have a baby, but she missed his train and he passed away in an accident before she could see him again.