Sinopsis

When the planet faced destruction, they saved it. Max and the flock have traded in Antarctica's subzero temperatures for sunny Los Angeles, where they're taking over the skies with their hair-raising air show. But far below, a deadly assassin watches their every move, waiting for the perfect moment to send them plummeting to earth. Now the battle for survival rages on Suddenly, the flock learns that millions of fish are dying off Hawaii's coast and that someone - or something- is destroying hundreds of ships. Confronted with the most frightening ecological catastrophe yet, they must delve deep into the murky waters. Now, nowhere is safe. This time, the flock is in too deep. While Max and her team comb the depths pf the ocean, a powerful enemy tracks them. He has his own plans for these amazing kids and will stop at nothing until they're under his control. Can the flock protect itself from the approaching army - and save the world from utter destruction?