Survivors of the Flux

Dan, Yaz and Jericho from last episode travel across 1904 doing detective work, discovering when the battle of Earth will happen. Thirteen also joins them after immediately reverting from an Angel at the beginning of the episode.

Kate is doing her own detective work in 2021 discovering why the Earth is defenseless against aliens.

This episode is the build up to the finale. Bel and Karvanista are attacked by Sontarans as the shield protecting earth has broken. Sontarans invade across time.

Again way to much happens in Flux.