ABC executives made a bold request that sent 9-1-1: Nashville stars scrambling: "We'd love to see some shots of the guys maybe with their shirts off," showrunner Rashad Raisani reveals exclusively. But the timing couldn't have been worse—right after Thanksgiving feasts.

"He texted me saying, 'Sorry this is a week or two after Thanksgiving,'" Oliver Stark recalls, admitting to immediate panic. Ryan Guzman calls the timing "devious and diabolical," while Hunter McVey reveals the extreme measures taken: "There were some IVs involved through that week" to stay hydrated and camera-ready.

The actors spent 25 minutes prepping together, with Guzman comparing it to "summer camp" due to the competitive atmosphere. McVey echoes the sentiment, highlighting the physical demands: "You have to be in good shape, you have to be physically ready for these type of challenges."

No word on whether the IV sessions were shirtless too, but fans can catch the results on 9-1-1 and 9-1-1: Nashville, airing Thursdays on ABC at 8 p.m. and 9 p.m. ET, respectively.