Here's the official guide of Fringe season 5 episode 9 "Black Blotter". Catch this on FX on Friday, Dec. 14th.
WALTER TAKES A TRIP IN SEARCH OF ANSWERS ---
- In attempt to recall a plan to defeat the Observers, Walter takes an LSD trip down memory lane.
- Meanwhile, Peter and Olivia trace a mysterious signal to the woods, where they come upon a grisly scene.