Deadline has released the trailer for Season 18 of "It's Always Sunny in Philadelphia", teasing the wedding of Frank Reynolds (Danny DeVito) and Samantha (Carol Kane) amid signs it may end in tragedy rather than triumph. The trailer, unveiled on Wednesday, offers fans a first look at the returning cast of beloved supporting characters, building anticipation ahead of the show's return on FXX and Hulu.

The new season, premiering on 17 August, comprises ten storylines involving the core "Gang" — Charlie, Mac, Dennis, Dee and Frank — tackling themes including inherited wealth, homelessness, automation-driven job losses, conspiracy theories and society's shifting attitude towards drinking. Familiar faces such as The Waitress, Gail the Snail, Uncle Jack and the McPoyles are set to reappear, alongside new set pieces including a Renaissance Faire and a Little League sponsorship storyline, as the ageing cast's antics grow increasingly chaotic.