It's Always Sunny in Philadelphia
Charlie's Mom Has Cancer
S8 E6:
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!
Starring
Artemis Pebdani, Lynne Marie Stewart, Sandy Martin