Tristan Jensen

A terrorist "over there" arms himself with an insect that enjoys human flesh; alternate Olivia is reunited with her boyfriend; despite remaining determined to save his world, Walternate discovers there are lines he won't cross.

When two 12-year-old kids bully another boy, they are found dead…and in just hours after dying, their bodies are shockingly in an advanced state of decomposition. As the Fringe team investigates the mysterious case, they uncover an amorphous figure claiming more victims. Meanwhile, Walter becomes increasingly distracted by his hallucinations.

Chloe and Oliver are mistaken for FBI agents investigating Desaad's recent string of murders and the pair are kidnapped by Desaad's minions. Desaad (guest star STEVE BYERS) tries to infect Chloe with the darkness. Meanwhile, Lois tells Clark he needs to be more careful with his identity and suggests a disguise.