Here’s the trailer of “Black Blotter”, the next episode of the awesome science-fiction TV series Fringe:

Fringe S05x09 Black Blotter
Episode summary:
“Walter takes an LSD trip in an attempt to recall any of the missing pieces in the plan to defeat the Observers. Peter and Olivia trace a mysterious signal in to the woods and find the grisly aftermath of an horrific event.”

So LSD is the key to take a trip down memory lane?
:)