Airing tonight in the UK at 9pm on Channel 4 is the sixth episode of The Event entitled Loyalty. The synopsis is below.

President Martinez and the Director of National Intelligence fulfil their agreement with Thomas, but when their plan goes awry they suspect the presence of a mole in their midst.

Sean Walker goes digging for answers at Leila’s home, where he encounters Madeline, a mysterious conspiracy theorist.

Meanwhile, Simon’s past is illuminated and his allegiances are tested.

We will just say that this episode ends on an explosive cliffhanger…

US trailer –

httpvh://www.youtube.com/watch?v=r1w3snPpP2o