by saying "its the law of nature" removes one from any responsibility of ones actions. It isn't just about exploitation or a deeper meaning or freedom. we are no longer part of the food chain, we've been able to remove ourselves completely. its the fact that we are the most intelligent and conscience beings on this planet. We are not only the most evolved in intelligence but also in spirituality. we should know better than to treat the world and it occupants like this. Especially in this day in age where information is at a press of a button. we should all be ashamed.
The Sontarans launch the attack with their poison gas slowly encircling the Earth. They've also taken the TARDIS to its headquarters but don't realize that Donna is inside. The Doctor realizes that the Sontarans have cloned Martha. He knows that fighting the Sontarans is of little use as they never surrender and are prepared to fight until they win. He decides to try and burn the poison gas that now encircles the Earth and with the help of the Sontarans teleportation system, send them a little surprise as well. At the end of it all, both Martha and Donna have to decide if they want to stay with the Doctor. Written by garykmcd