Jack Bunny Bam-Bam and the Weeper Apocalypse

Jack lives in a city surrounded by walls of fire. THINGS lurk in the wastes beyond where the farmers drive their homes onward in fear. Ninjas and hitmen want his blood but Jack is a killer. The best that's ever been. So what if he's a GREEN RABBIT? His guns are the fastest and his feet were made for cracking skulls. But can even he face the Weepers and their infectous, endless tears?