Things at the mall deteriorate, just as Kevin arrives to find his family, and track down Adrian.
When Kevin and the gang stop back at Adrian's house briefly, everything changes.
Kevin finds out things aren't so friendly at the hospital, as his daughter Alex discovers the same in the mall.
When Kevin reaches the hospital, he runs into his older brother Mike, who's injured. Flashbacks show us the strain of their relationship.
Those trapped together find their situations becoming worse by the minute. At the mall, a new rule is broken; a punishment must be doled out.
When a mist starts bearing down on a small town, people are attacked by a sinister force inside it.