James rushes to Gwen's side in Sunday's Fair City on RTÉ One and the RTÉ Player.
The drama begins when murder suspect Tyler offers to check the fuse box in McCoy's - aware that Gwen has just ventured down to change a keg.
James then arrives at the bar looking for Gwen.
"Is Gwen not here?" he asks.
"She's in the basement changing a keg," replies Sash. "Yeah, the power is gone. We're hoping it's just a tripped switch, so won't be long. Your man Tyler is down there trying to suss it out."
"Tyler?" says James.
"Yeah," Sash replies. "In the basement."
"Oh no!" says James as he rushes down the stairs, telling Sash to get out of his way.
Fans can watch what happens next on Sunday on RTÉ One and the RTÉ Player at 8:30pm.
Fair City airs on RTÉ One and the RTÉ Player on Sundays, Tuesdays, Thursdays, and Fridays.