Connor (Jordan Wilks) grows closer to Megan (Mali Ann Rees) and Jamie (Aaron Anthony), while matriarch Christine (Rakie Ayola) pulls out all the stops to dispute his claim.
Compelled by their protective natures, Christine and family friend Beth (Lisa Palfrey) leverage their access to social services records to launch separate under-the-table investigations. Christine leans on her old friend Kate (Elizabeth Bennington) to gather more information about Connor, while Beth tries to locate the Rees’ absent father.
The Rees siblings have been rocked by Connor’s arrival. Hot tempered older brother Will (Lloyd Everitt) has to deal with the consequences of his violent behaviour when the police come knocking, and his straight-talking wife, Sam (Rebekah Murrell), gives him an ultimatum. As Megan’s wedding to Gethin (Jacob Ifan) looms, Connor’s appearance at her hen party causes tensions to rise even higher.
Everything comes to a head when the family receive the results of a pivotal DNA test and Connor finds something that could unlock the mystery of his past.
The Pact – Monday at 9.00pm on BBC One.
Image: BBC/Little Door Productions/Simon Ridgway