At first they came from the skies. In the ensuing war, Earth was laid waste, but we had won... But that was just the first strike - now the invasion has landed! Defeat the returning Titan horde in a series of epic ground battles, save the Earth, again, and command the counterstrike against their homeworld!

Mikey and Julie are now older and no longer dubbed in this, the third film of the series. Mollie and James are still together and raising the children on their own. Mollie is no longer working for the same firm, and James has landed a terrific job as a private pilot to a sexy business woman, Samantha, who is after James. Two new additions arrive in the family in the form of dogs, Rocks and Daphney. More tension forms with the arrival of the dogs, and it looks uncertain if Mollie and James will remain together.