Weakened by his struggle, Perseus sends Bubo to rescue Pegasus from Calibos's henchmen and reaches the amphitheater in Joppa, where he collapses from exhaustion. Andromeda is shackled to the sea cliffs outside Joppa, and the Kraken itself is summoned. Bubo diverts the Kraken's attention until Perseus, whose strength was secretly restored by Zeus, appears on Pegasus.