After Ash loss in the Unova league against Cameron Ash returned to his home only to find the person who beat him and his companions betraying him saying he should give up on his dream Ash was even betrayed by his Pokémon even his pikachu,Mother and Unova Pokemon betrayed and only Six remains with him Oak tells him he should go to Kalos after the events of Garchomp and before he was gonna begin his journey Ash went for a two years training has then he begins his journey
8 parts