Mysteries of Evolution (2015)

S2E12 The Enemy of the Bane (2)

Title: The Bane's Adversary (2) Plot: Haunted by unsettling dreams featuring Mrs. Wormwood, Luke finds himself in a state of distress. Meanwhile, the Sontarans return, seeking vengeance for past encounters. To combat this looming threat, Sarah Jane realizes she needs to reach out to a familiar ally once more.