Complex sentence: Dregg soon escapes from the trap and captures Shredder and Krang, and although he successfully drains the Turtles and Krang of their energies, Shredder breaks free before Dregg is able to take anything from him.
Split into simpler sentences: Dregg soon escapes from the trap and captures Shredder and Krang. Although Dregg successfully drains the Turtles and Krang of their energies, Shredder breaks free before Dregg is able to take anything from him.