“Plant Hunter” is the high concept, narrative-driven music video for MGMT’s “Cool Song Number 2.” The video stars Michael Kenneth Williams, known for his iconic roles as Omar in The Wire and Chalky in Boardwalk Empire, as The Plant Hunter-a new jack thief who commandeers genetically engineered plants and processes them into euphoria-inducing drugs-and Henry Hopper as Tree, his lover who has been mutated by the drug and is undergoing the final chapter of a bizarre physical transformation.