An early BBC iPlayer release has exposed a key secret in EastEnders.

During a tense birth scene, Penny Branning's baby secret gets revealed.

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

The twist centres on a fraught dynamic between Penny and Priya Nandra-Hart.

Viewers will be taken aback. The tension builds quickly. Penny must handle the fallout. Priya is closely involved.

The revelation shifts the storyline. Questions swirl around the baby's paternity. New details emerge from the episode. Both characters deal with the consequences.

The episode builds towards more drama. Audiences are sure to react strongly.