Earth's only move is to engage the invaders according to their holy law and issue The Challenge of the Heretic--a winner-take-all gladiator battle for our right to exist. Marlowe launches Beast Wars, a televised interspecies tournament designed to select Earth's mightiest champion. On a decadent private island, sharks, lions, gorillas, and polar bears square off to the delight of screaming fans oblivious to the sky-high stakes. Enter Bruno Bolo--single father, blues belter, and alligator wrestler from the swamps of Florida. Beset by personal demons, corporatized killer sharks, Yeats-quoting pit fighters, and looming alien eradicators, Bruno will emerge as our desperate planet's final hope.