chunk: Z arrives at the colony where he finds that Bala is being held captive in General Mandible's office. After rescuing her, he learns that General Mandible's "Mega Tunnel" leads straight to a body of water (the puddle next to Insectopia) which Mandible will use to drown the Queen Ant and the workers who have gathered at the opening ceremony. Bala goes to warn the workers and her mother at the ceremony, while Z goes to the tunnel exit to prevent the workers from digging any further. He fails, however, and the water leaks in. Z and Bala unify the workers into a single working unit and build a towering ladder of ants towards the surface as the water continues to rise.