When a scientist falls dead after ingesting a lethal 구름, 클라우드 of blue powder and his 본즈 disintegrate in his body, the CDC suspects a biological attack. As the Fringe Team investigates further...
Concentrate and Ask Again, A scientist dies after ingesting a 구름, 클라우드 of blue powder that disintegrates his 본즈 a person from Walter’s past reluctantly agrees to help with the investigation.