An early BBC iPlayer release has uncovered a major twist in EastEnders.

During a dramatic labour scene, Penny Branning's baby secret comes to light.

The identity of the baby's father is discovered by a very unexpected person.

The twist focuses on an unexpected bond between Penny and Priya Nandra-Hart.

Viewers will be taken aback. The tension rises sharply. Penny finds herself at the centre. Priya is closely involved.

The revelation shifts the storyline. Questions swirl around the baby's paternity. New details surface during the scene. Both characters are left shaken.

The episode leaves the door open. Audiences will be talking about this.