David Daker

When Rodney falls in love, he doesn't appreciate Del's brotherly helping hand.

The Doctor discovers that the alien is a Sontaran warrior called Linx who is trying to repair his spaceship. Sarah is convinced that the Doctor is responsible for the abductions.

As the repairs to Linx’s spaceship are completed and he prepares to take off, the Doctor races to save the captured scientists and to prevent the course of history being changed.

Linx is providing advanced weaponry to Irongron and his men who prepare to attack Sir Edward’s castle. The Doctor is forced to improvise a defence, but will it be enough?