Mysteries of Evolution (2015)

Episode Overview

Title: The Gift (1) Plot: The Blathereen, longtime enemies of the Slitheen family, make their way to Earth with an unexpected announcement. The gang is taken aback when they proclaim a new era of peace between Earth and Raxicoricofallapatorius. To further their intentions, they present Sarah Jane with a remarkable gift that has the potential to alter the future of humanity in profound ways.