Having seemingly survived the Flux, The Doctor, Yaz, and Dan are dropped in the Crimean War where the British are battling the Sontarans! Yep, they're taking advantage of the Flux to conquer Earth across time. Meanwhile, on the Planet Time, not all is well. Time seems to be sentient and the mechanisms in place to make it behave are in need of repair! Can Team TARDIS make things right before the Swarm Squad sweep in to wreak havoc?! It wouldn't be the wild ride that Flux is turning out to be if there wasn't lots at stake!