Max and Mia are very excited about their school trip to the zoo. But when they arrive not much is happening; the zebra is asleep, the lions are hiding and they can´t even see a monkey. Max and Mia make the best of it - after all, if you look very carefully there is something to see everywhere. Then they fall too far behind everyone else . . . and are locked in the zoo at night! What they didn´t realise is that midnight is time the zoo comes alive. Flamingos are doing the flamenco, the lions dance till dawn and the pandas have a party.