However, the Metal Men destroy the Gas Gang, transforming them into steam and returning Magnus to his normal form.
[1][2] In subsequent appearances, the Gas Gang are rebuilt and begin serving Platinum Man.
[3] The Gas Gang appear in the Batman: The Brave and the Bold episode "Clash of the Metal Men!
In the present, the Gas Gang kidnap Magnus and coerce him into building robot bodies to contain them until they are thwarted by Batman and the Metal Men.
During the subsequent battle, Batman accidentally merges them into a lethal gas cloud before destroying them with the Batplane.