If you've been eagerly awaiting Downton Abbey Season 4 then you're in for a pretty big treat this evening because the first trailer has just dropped and my is it action packed.

SPOILER ALERT: We would suggest looking away now if you don't want to get a hint of what's to come.

The infinitely talented Maggie Smith sets the tone for the season as she tells a rather defeated looking Lady Mary to choose life. After that, well, why don't you watch for yourself above.

Downton Abbey Season 4 hits TV screens at the end of September.