When intelligence agents around the world are under attack from alien forces, MI6 turns to the only people who can help: the Doctor and friends. As they travel the globe looking for answers, attacks come from all sides. Earth’s security rests on the team’s shoulders, but where will this planet-threatening conspiracy lead them?

Archie’s plan to host a peaceful Thanksgiving dinner at the community center quickly gets derailed when some unexpected guests arrive. Stranded at Stonewall Prep by an ice storm, Jughead and Betty search for clues about a recent death on campus. Elsewhere, while FP, Alice, Hiram and Hermione wait out the storm together at Pop’s, Cheryl and Toni get resourceful as they host a dinner for Cheryl’s family.