Game play does not change radically for this expansion. The new item cards add first aid kits, car repair kits, molotov cocktails and sniper rifles among others!
The event disks are added to the street spaces. With the addition of these disks, the street is not a bad place to be... mostly. The disks include: master keys, +1 actions and +1 health. Of course, there are hidden zombies and obstacles as well.