Dr. astr is destroying new york's banks with his latest experiment "Platic Ape". Using plastic gas he is able to give the ape the same powers as Plastic Man.
Plastic man confronts them but is over powered and out smarted by the ape.
Eventually The plastic team get it right as Hula Hula is accidently sprayed with the Plastic gas, allowing him to shape shift into a rope and capture Dr Astro.
plastic man morphs into a banana and traps the Plastic ape in a tunnel long enough for the plastic gas effects to wear off.
A good episode that is fun to watch.