This activity has one group of kids protecting the fort by throwing soft foam balls at the "intruders." The "intruders" have two jobs...try to make it around the fort back to their original team without being hit, and job 2 is to sneak up on the fort and try to steal one of the foam "statues" placed by the corners of the fort. The "intruders" may also pick up balls and throw them back to the fort, not at that team, but simply helping to keep the game continuous!