Continuing where we left off, the Doctor, Rose, Mickey, Rickey and a few of Rickey's underground terrorist organisation members are surrounded by Cybermen about to be deleted.

The Doctor uses the power coil to knock out the Cybermen with some of the energy and everyone runs off.

The Cybermen force are busy rounding up people, putting them in vans and converting them to Cybermen. It's Mondas all over again. Can the Doctor change the history of this world so that it doesn't turn out like Mondas?

The team split up in the hope of distracting the Cybermen but the inevitable happens to Rickey. They get back together but Mickey is the outsider again.

They plan on turning off the signal to the earpieces. Mickey and Jake head off to disable the dish antennae on the front of the zeppelin while the Doctor and Mrs Moore try and attack the Cybermen from 'above, between and below'

Rose and Mr Tyler head off disguised as controlled humans ready for upgrading in the hope of saving Jackie Tyler. Unfortunately they're too late.

Mickey and Jake get into the Zeppelin and try and disable signal. An empty Cyberman Robot on display activates. Mickey leads it over to the power station and it lunges for him to electrify him. Mickey jumps out of the way just in time and the Cybermen stands with his hands in the system being electrocuted with blue flame spluttering all around it, disabling the signal in the process. Excellent!

Angela Price (Mrs Moore) disables a Cybermen with an electromagnetism bomb and the Doctor finds out that they're weakness is that they're fitted with an emotional inhibitor chip. If a signal could be sent out to disable the chip so that the Cybermen could see themselves...

Because everyone has always believed that Cybermen are male it was interesting to have a couple of scenes where the Cyber'men' turn out to be females.

This story is brilliant and definitely one to watch more than once. There are thousands of Cybermen and the Doctor actually looks worried! This is probably the first time that I've felt that nailbiting suspense sensation this series so this story is definitely one to recommend to sci fi fans. And if they mention the Borg, you know what to do!

Mickey goes through a lot of development in this story and it is definitely a sad story for Mickey. Because there is such a strong emotional theme throughout anything that Russell T Davies produces, you tend to expect that a box of tissues might be handy. In this episode you'll need them.