The Final Sanction

The year is 2204. The final confrontation between humankind and the monstrous Selachians is about to reach its tragic conclusion. Once again the Second Doctor has become entangled in human history. Caught up in a brutal and bloody conflict, he knows he must do nothing to influence the outcome. But, when the TARDIS disappears and Zoe falls into Selachian hands, he is forced to intervene...