Supernatural (2005)

S8E8 Hunteri Heroici

In the episode "Hunteri Heroici," Castiel announces to Sam and Dean his ambition to join their ranks as a hunter. Although the brothers are skeptical, they consent to look into a peculiar case Cas has uncovered, involving a man whose heart explosively ruptured from his chest. As they delve deeper, they realize that the fatalities share eerie similarities with cartoonish deaths, leading to a bizarre investigation that challenges their understanding of the supernatural.