Pretty good. Always a fan of alternate timelines and whatnot.

This story is like a love letter to The Sarah Jane Adventures, with references to everything from Invasion Of The Bane to The Man Who Never Was. Rani and Clyde are as fun a partnership as ever, and they're joined by a new young recruit called Jude, who is a very interesting character as a human-Bane hybrid.

The Bane's return is an excellent plot, selling the Earth's resources whilst the human race are literally looking the other way on their phones. There's some great social commentary about how people spend too long looking at their devices, which is something The Sarah Jane Adventures always did well.