Complex sentence: He is kidnapped along with Rose, Mason, Mia and Eddie in "Frostbite", later on he helps them esccape by melting Rose's hand cuffs as he is a fire user.
Split into simpler sentences: He is kidnapped along with Rose, Mason, Mia and Eddie in "Frostbite". Later on he helps them escape by melting Rose's hand cuffs as he is a fire user.