Manifest_s01e06 -

Grace is forced to watch Cal suffer without knowing the truth, creating a deeper rift between her and Ben as he keeps the "Calling" secrets to protect them.

The story begins with falling into a sudden, unexplained illness. He develops a high fever and starts speaking in a foreign language (Bulgarian), screaming "Help me!" in a voice that isn't his own.

Ben discovers that UDS is conducting painful experiments on these "forgotten" passengers to test their connection to the Callings. Manifest_S01e06

Ben teams up with and Olive to track down where these 11 passengers were taken. They realize the government didn't just lose track of them; they were spirited away by a mysterious entity known as Unified Dynamic Systems (UDS) .

Every time the scientists shock Marko's brain or subject him to stimuli, Cal reacts in the hospital with the same physical trauma. Cal has become a human radar for the suffering of his fellow passengers. Michaela’s Investigation Grace is forced to watch Cal suffer without

The episode ends on a haunting note: though Cal’s fever breaks when the experiments momentarily stop, the realization settles in that the passengers are being hunted by the very people who claimed to be helping them.

This episode introduces the idea that the 191 passengers are "linked." What happens to one can be felt by another, suggesting a collective consciousness. Ben discovers that UDS is conducting painful experiments

In Episode 6 of Manifest , titled the mystery shifts from individual "Callings" to a conspiracy involving the missing passengers of Flight 828. This episode is a turning point where Ben Stone realizes that being a passenger makes him part of a larger, more dangerous experiment. The Mystery of the "Fever"