1. The Novichok Attack

Salisbury becomes the scene of a major international incident. Sergei Skripal and his daughter Yulia are found poisoned on a park bench.Then, an astonishing discovery: he’s a former Russian spy and they've been poisoned with Novichok, one of the deadliest substances in the world. Parts of Salisbury are locked down as police try to find the poison.Presenters: Andy Howard, Marie Lennon Senior Reporter: Dan O’Brien Producers: Andy Howard, Marie Lennon, Tom Ryan, Rachael Smith Executive Producers: Mary Sanders, Naomi Wordley Consultant: Jake Williams Commissioning Editor: Alistair Miskin