The new Fair City trailer promises Carrigstown fans that they are in for quite the weekend on RTÉ One and the RTÉ Player.

Releasing the trailer, Fair City said: "A surprise arrival to Fair City's Carrigstown threatens to unravel some explosive family secrets for the Mullen family.

"Jess (Ciana Howlin) is incredibly unsettled when her old flame Steo Nash (Gerard Jordan) messages her to meet up. Little does she know that Steo is out on parole from prison and ready to rock into town to stake his claim on the baby.

"Jess' pregnancy has been shrouded in secrecy, with mystery surrounding the identity of the baby's real father.

"Jess and her mother Babs (Ali Fox) had succeeded in covering up the truth, until an inebriated Victor (Mark Asante) cracked and revealed to Greg (Shane McCarthy) that he is not the baby's father.

"In need of a friend, a distraught Greg began to visit his friend Steo in prison and revealed that Jess is pregnant by someone else.

Will Greg (Shane McCarthy) and Jess' (Ciana Howlin) relationship survive Steo's arrival?

"After Greg's startling admission, Steo quickly 'did the math'. Jess has been ignoring Steo's attempts to reconnect since then, as she is determined to bury the secret and make a go of things with Greg. Steo has other ideas, however.

"Will Jess be able to continue playing happy families with Greg, or will all hell break loose when Steo gatecrashes the Mullens' family lunch? In every love triangle, there are more than two sides.

"Watch it all play out on Fair City from Sunday 26 November, 8.30pm on RTÉ One and RTÉ Player."

Fair City airs on RTÉ One and the RTÉ Player on Sundays, Tuesdays, Thursdays, and Fridays.

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Catch up on Fair City on the RTÉ Player.