It is the 89th overall episode of the series and is written by Andy Callahan and co-executive producer Denise Thé and directed by Frederick E. O. Toye.
The series revolves around a computer program for the federal government known as "The Machine" that is capable of collating all sources of information to predict terrorist acts and to identify people planning them.
According to Nielsen Media Research, the episode was seen by an estimated 8.45 million household viewers and gained a 1.4/4 ratings share among adults aged 18–49.
Meanwhile, Reese (Jim Caviezel) and Fusco (Kevin Chapman) investigate a crime scene where one of Elias' hitmen killed members of The Brotherhood.
Root infiltrates the floor and discovers that the hospital serves as the base of operations for Greer (John Nolan) and Samaritan.
However, Elias laughs, revealing that he didn't have a mole in The Brotherhood and tricked Dominic to kill his friend, avenging Scarface's death.
Back at Washington, D.C., Control is told by the Samaritan operative that a big event called "The Correction" will arrive on May 6 and there's nothing to stop it.
Finch is captured by Greer and Root is tied to a bed in order to gain access to the Machine through her head.
Despite Root's and Finch's insistence in not revealing anything, the Machine itself tells them it can't lose them and exchanges its location for their lives.
In its original American broadcast, "Asylum" was seen by an estimated 8.45 million household viewers and gained a 1.4/4 ratings share among adults aged 18–49, according to Nielsen Media Research.
Matt Fowler of IGN gave the episode an "amazing" 9 out of 10 rating and wrote in his verdict, "Things are looked grim for Team Machine at the close of 'Asylum.'