OK K.O.! Let's Be Heroes (2017)

S02E36 Rad’s Alien Sickness

After our heroes come down with a mysterious virus, Rad exhibits an unyielding determination to fight it off. Despite the mounting challenges and concerns from his friends, he remains resolute in his decision to tackle the illness head-on, showing a mix of bravery and defiance. As the situation escalates, Rad's tenacity is put to the test, leading the group to rally around him in hopes of finding a solution together.