9.03 The Sea Devils

3rd Doctor and Jo 'Arrested after the events at Devil's End, The Master has been incarcerated at a top-security prison on a remote island off the south coast of England. When The Doctor and Jo Grant pay a visit to their old enemy, they find him a reformed character. But can the spate of mysterious shipping accidents and garbled reports of sea monsters in the local area really be a coincidence? The Doctor soon finds himself pitted against the Sea Devils, an ancient race of reptiles intent on eliminating mankind and reclaiming the earth for themselves...' Written By: Malcolm HulmeDirected By: Michael Bryant