Parts: 1 (45-minute)
Writer: Ed Hime
Airdate: 12 January 2020
Production Code: n/a

Doctors: thirteenth
Companions: Ryan, Yaz, Graham

Creature Feature: Dregs

Story: When Graham takes the initiative to earn a free holiday for 4 at luxurious Tranquillity Spa, the TARDIS crew are swiftly transported there for two weeks of sun, swimming, and all-inclusive fun. The pool is sparkling, the bar is stocked with free snacks, and the drinks are flowing.

But among the holidaymakers is a saboteur, who has unleashed a computer virus that swiftly begins wreaking havoc on the Tranquillity Spa systems... including bringing down the protective ionic membrane. Why, the Doctor wonders, would a vacation resort need a protective barrier? Because beyond the spa's boundaries live malevolent creatures who are very, very eager to get inside...