Camelot (2011)

S2E15 Monster Blood (1)

During his time with his eccentric great-aunt Kathryn, Evan stumbles upon a quirky, old toy shop where he picks up a can of dusty monster blood. Initially, it's all fun and games, and even his dog, Trigger, enjoys it so much that he gobbles some up! However, Evan soon realizes something strange is happening—the green, gooey substance appears to be expanding. And as it continues to grow, it develops an insatiable hunger of its own...