In 1491, there's a Primary who is dead set on ridding himself of the voices. You've seen him before, he's the guy who killed all those Primaries dressed in robes a few episodes back. He spends a lot of time flogging himself. And now he's met Olivia when she splinters into that time, trying to get "the weapon" before Team Splinter can.
The Primaries standing in the circle? We've seen them before. Turns out they drew The Witness to them so they could distract her while Cole and the team found the weapon. And after a good solid dressing down of Olivia, they're all set on fire.
An attack by the Army of the 12 Monkeys! They successfully prevent Cole from reaching the machine. As Cassie tries to help, both she and that bad dude slow time briefly. And they're each left with a souvenir: a streak of grey in their hair.
And in order to stall for time, Deacon gives a bit of a monologue to anger her. And the first to die by beheading is Deacon. A noble character, Deacon, leader of the West VII, goes down. For the last time. Godspeed you, sir.
Jennifer Goines is devastated by the death of Deacon. But she meets up with an old friend. Her old self. She tells Jennifer to take the swirl of random spirals and symbols and make something out of them.
Back in 2009, Emma and Hannah try to plot their next move. Emma knows her purpose was to learn all she could from Katarina and Elliot Jones. It looks though, like there's no turning back. The big paradox Titan is going to make is coming. All time will collapse. Hope seems lost...