Doctor Who‘s new series continues next weekend with The Power of Three.

The Doctor and the Ponds puzzle an unlikely invasion of Earth, as millions of sinister black cubes arrive overnight, almost like presents falling from the sky. But what are they, what’s inside them and most importantly, who sent them?

The Power of Three airs at 7.30pm on Saturday 22nd September on BBC One. To whet your appetite, here are ten teasing hints for the episode…

» Familiar RTD tropes are employed.

» The Silence make an appearance.

» Flickr, YouTube and Twitter get mentioned.

» Nintendo, Apple and Ugg boots will be pleased.

» For this wondering if Christmas would be mentioned four episodes in a row, you won’t be disappointed.

» The cast of a television show referenced in Series 6 Part 2 appear.

» A classic monster is mentioned (and technically seen).

» A talent the Doctor showed off in The Lodger makes a return.

» Things can only get better.

» Adric. Poor Adric.

> Order Series 7 Part 1 on DVD on Amazon.

Are you looking forward to The Power of Three? Let us know below…