Jess is horrified when Steo squares up to Greg in Sunday's Fair City on RTÉ One and the RTÉ Player.
Tensions have been building in recent weeks with the tug-of-love battle involving Jess and Steo's baby son Taylor.
On Sunday, Steo sees red when he finds Greg visiting Jess and Taylor.
Greg, however, isn't backing down.
"Hit me hard, man," Greg tells his former friend. "Taylor should get used to seeing his da in cuffs."
With that, Steo lunges at Greg.
"Would yiz both stop it!" shouts Jess.
Fans can find out what happens next on Sunday on RTÉ One and the RTÉ Player at 8:00pm.
Fair City airs on RTÉ One and the RTÉ Player on Sundays, Tuesdays, and Thursdays.
