It's Always Sunny in Philadelphia - Season 4 (2008)

Charlie manipulates Mac and Dennis when he accuses the two of them with sleeping with the coffee shop waitress.

After Mac's father is released from prison, Mac and Charlie stage their own deaths to save their lives.

After Mac and Charlie fake their own deaths, the rest of the gang finds unique ways of dealing with the loss.

Frank and Charlie find someone has pooped in their bed, leading Mac and Dennis to join them as they attempt to find the culprit.

The gang kidnaps the writer of a review claiming that Paddy's is the worst bar in Philadelphia and tries to force him to change his mind. But things get worse when Dennis and Dee accidentally kidnap the writer's neighbor.

While Frank and Mac come up with ways to spice up Dennis' erotic memoir, Dee finds that spending time in Charlie's shoes is way more difficult than it seems, and vice-versa.

After Dee suffers a heart attack, she and Dennis try a healthier lifestyle. Charlie and Mac join the corporate work force to get health insurance.

In order to get Paddy's recognized by the city as a historical landmark, Mac, Dennis, and Charlie flash back to 1776 to tell the tale of the Paddy's crew's involvement in the cracking of the Liberty Bell.

While trying to make their own dreams come true, the gang decides to pay it forward to an unlucky family living in the city only to have their plans backfire on them.

Charlie stages a rock opera based on his song "Nightman," and recruits the rest of the gang to help him with it.