Posted in: FX, Hulu, TV | Tagged: always sunny, It's Always Sunny In PhiladelphiaIt's Always Sunny in Philadelphia S18E01: Is Frank Marrying a Corpse? Based on the images for FXX's It's Always Sunny in Philadelphia S18E01: "Frank Marries a Corpse," this season isn't wasting time going dark. Article Summary Always Sunny Season 18 opens with Frank and Sam’s wedding, as the Gang scrambles to calm his cold feet. It's Always Sunny in Philadelphia S18E01: "Frank Marries a Corpse"It's Always Sunny in Philadelphia Season 18 Episode 1: "Frank Marries a Corpse" – The guys help Frank with his cold feet ahead of his wedding to Sam; Dee tries to scare Sam off the nuptials with testimonies from The Waitress, Artemis, and Snail. The contrast of Mac (Mac) trying to offer a history lesson while seeing his "karate" skills being countered by a LARPer's "forcefield backlash spell" was excellent.