Jake is an NPC and is the best friend of the player character, though he serves as the rival in the game. Jake is also a fellow Pokemon Trainer with Eevee as his starter. After the player beats the fourth gym in Anthian City, they notice Team Eclipse's airship flying in the sky and once back in the city, Tess and Gerald alert the player and soon Tess and the player head into the Anthian Sewers and do double battles till they reach the entrance of Anthian Park. After that when you finish defeating the fourth gym Jake gets kidnapped by Team Eclipse and is taken hostage. Soon you'll find out that Jake has switched sides and joined Team Eclipse as one of the admins.