When a passenger realises that someone is attempting to hack his train, he makes a desperate call for help. But can two total strangers work together to get everyone off in time?

O misterioso desaparecimento de uma traineira escocesa e a morte a bordo de um submarino nuclear Trident colocam a polícia em conflito com a Marinha Britânica e os serviços de segurança.

Jenny, a single mother raising two daughters after her husband leaves, is aided by her mother, Mary. But Jenny struggles to stay afloat after Mary suffers a string of medical issues.