While the town awaits the arrival of the Company Man, a stranger appears in the windswept dunes, singing songs to the sea. This is just the start of three days of unearthly events in Port Talbot that see the Teacher soothe a suicide bomber and the dead rising from the walls of an underpass. In The Gospel of Us, Owen Sheers reimagines his three-day dramatization of the Passion for the National Theatre of Wales.