Juliet and Ruby show Mondo and Victor footage of Hayley and Sharon discussing Anto's role in the fire in Thursday's Fair City on RTÉ One and the RTÉ Player.
Mondo and Victor nearly lost their lives in the blaze when they went to rescue Ruby and Alex.
Anto set the fire at the Rafferty development in a bid to solve his daughter Hayley's money troubles.
In Thursday's episode, Mondo and Victor feel shocked and betrayed, furious after welcoming Anto back into the community.
"He's put us through the wringer," says Victor. "He should answer."
"It's agreed, then," Mondo replies. "We pay him a visit."
Fans can find out what happens next on Thursday 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.