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"The ramping up of his kinetic energy at an atomic level, and once it reaches a critical threshold, that massive energy transforms his body from a solid to a flammable gaseous state and then..."
Jemma Simmons and Daisy Johnson

BOOM is the thirteenth episode of the fourth season of the television series Agents of S.H.I.E.L.D., and the fifth episode of the LMD pod.


Daisy, Mace and the S.H.I.E.L.D. team must find a way to contain an explosive Inhuman. Meanwhile, Coulson and Mack come face-to-face with Radcliffe's inspiration for Aida.


Tucker Shockley blasts Ellen Nadeer's office

At the Playground, Jeffrey Mace learns from Jemma Simmons that the Patriot Serum that he has been using to pose as an Inhuman could endanger his health and that he must stop using it. Having to step away from the field, Mace still serves as the public face of S.H.I.E.L.D., arranging the relocation of Inhumans by the Watchdogs.

Indeed, the armed group is still very active and soon makes another victim: Anton Ivanov sends Tucker Shockley to expose Ellen Nadeer to a Terrigen Crystal since she could also be an Inhuman like her brother. However, it turns out that Nadeer is not an Inhuman, unlike Shockley, who undergoes Terrigenesis and uses is newly acquired explosive powers to kill the Senator and her staff. After S.H.I.E.L.D., unaware of Shockley's true nature, sends a team to investigate, Shockley is arrested and brought aboard the Zephyr One, that he nearly takes down before being ejected.

Another field mission is set up and successfully captures Shockley in a containment sphere designed by Leo Fitz, locking him in a secure containment sphere, but Mace is seized by the Watchdogs while ensuring the rest of the agents' escape.

Agnes Kitsworth and Holden Radcliffe

Meanwhile, in Caldes de Montbui, Spain, Phil Coulson and Alphonso Mackenzie retrieve Agnes Kitsworth, Holden Radcliffe's former girlfriend. Though Radcliffe left her after failing to cure her of brain cancer, he never forgot Kitsworth since the Life-Model Decoy Aida was built with an exact resemblance to Kitsworth. Coulson and Mackenzie convince Kitsworth to arrange a meeting with Radcliffe so that S.H.I.E.L.D. could locate and rescue Melinda May.

However, Radcliffe, in turn, persuades Kitsworth that he has a way to save her: the Framework, a whole virtual rebuilding of the real world built by Aida thanks to the knowledge found in the Darkhold. Radcliffe, much to Coulson's dismay, takes Kitsworth with him and connects her body to the Framework. When her consciousness has successfully been downloaded in the Framework, Radcliffe euthanizes her body, wishing to ensure for her everlasting life in the virtual world.


Main Cast:

Guest Stars:






Sentient Species






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