The download links for Series 7 Episode 4, The Power Of Three are below:

Download SD
Download SD
Download SD
Download SD

HD: Link1, Link2, Link3, Link4, Link 5, Link 6, Link 7, Link 8, Link 9, Link 10, Link11, Link12, Link 13, Link 14, Link 15, Link 16.

If you have any problems then please do let us know!

As always, thanks to PCJ for these!