Crossed words between neighbors in Atlanta suddenly turn serious with an exchange of gunfire. In Arizona, a woman hiking in mountains is harangued by a neighbor who thinks she is trespassing on his property. And a party-loving couple in Florida clashes with their neighbors over noise.

South Carolina roommates are subjected to a string of bizarre insults by a neighbor outside their home. Neighbors turn ugly in Oklahoma City when an apparent handshake agreement to not park in front of each other's houses is ignored. And a crowd in Beverly Hills unleashes its fury on a driver for leaving her dog locked in a car on a sunny day.