In perhaps the most depraved scheme of them all, The Gang rallies around Charlie's mom as she battles cancer. As Mac, Charlie, and Dee struggle with their faith, Frank loses his memory and his mind in a quest for buried treasure, and they're all rocked by a revelation that will shake Paddy's to its very foundation!

After slipping into an unhealthy obsession with computer games, The Gang wrestles to define the difference between the real and the virtual worlds.