Following directly on from "Absolution", Daisy begs Hive to control her again, but Lash's powers have rendered her immune. She instead attacks Hive but is defeated and captured as James and Giyera arrive, and they escape in the Zephyr. However May and Fitz stow away onboard and rescue Daisy, and Fitz kills Giyera. Most of the Primitives remain behind to fight the SHIELD agents, and Elena intercepts a bullet meant for Mack and is almost killed, but Simmons realises that the Primatives' eyesight uses light on the infrared spectrum and so masks the presence of the agents by raising the ambient temperature of the room. The agents are then able to defeat the Primatives. After taking Elena and Radcliffe to safety, Coulson, Simmons, Mack and Lincoln pursue the Zephyr in a quinjet, planning to steal the warhead containing the Primitive pathogen and send it into space aboard the quinjet, to disperse the pathogen harmlessly. Lincoln defeats James but is badly wounded, and Daisy, having found the crucifix in Fitz's jacket, decides to fulfil her vision of a SHIELD agent's death in space by flying the quinjet to make sure nothing goes wrong. While Coulson, May, Fitz, Simmons and Mack fight the remaining Primitives, Hive pursues Daisy aboard the quinjet, but Lincoln gets onboard, fries the manual control system and ejects Daisy. He then flies the plane into space, professing his love for Daisy over the communications system, and the warhead detonates, killing him and Hive while dispersing the pathogen harmlessly in space. The human race is saved, but Daisy is left heartbroken. A flashforward to six months later reveals that Daisy has left SHIELD and begun operating as a vigilante, dubbed 'Quake' by the press. Coulson and Mack almost track her down as she arranges the relocation of Charles Hinton's wife Polly and daughter Robin, but she escapes after directing Polly to Cal'sveterinary practice. In an end tag Radcliffe is revealed to have been working on a robotics project, the 'Life Model Decoy', as part of which he uploads his artificial intelligenceAIDA into the prototype android.
Production
Development
In April 2016, Kevin Tancharoen revealed that he would be directing the season's finale, and was "just starting to dive into the treatment and the outline and the script and everything and just getting into it". Later in the month, Marvel announced that the episode would be titled "Ascension", and would be written by executive producer Jed Whedon.
Writing
Actress Chloe Bennet said ahead of the episode's release, "This is the end of a chapter—more than a chapter; this might be the end of the first book of S.H.I.E.L.D. This finale feels like the end of something bigger and the beginning of a whole new tone for the show. It’s completely nonstop. It’s shocking and it’s also just really sad." With the series having been teasing the impending death of a major character, in the possession of a golden cross and S.H.I.E.L.D. jacket at the time, the executive producers confirmed that the season's final episode would feature the death. They revealed before the airing of the episode that they would "play a game of hot potato" with the items to keep the identity of the dying character a mystery for as long as possible. Actor Clark Gregg said of the cast's experience with this aspect of the script, "We were very aware when someone would pick up the cross. There’s a lot of sleight of hand with the cross. You don’t want to be the last person holding the cross." Whedon discussed the cross as a symbol in the script, saying, "We like that the hot potato of death is this delicate little cross. We’re fighting the devil; it’s a question of faith." He also admitted that "some of the potato-tossing in the finale is just to mess with viewers": "Some of it’s pretty meaningful as it passes hands, and some of it’s painful for the audience." After the episode reveals Lincoln Campbell to be the "Fallen Agent", the executive producers said that they felt the character earned his "heroic" death after the way he had developed throughout the season. His final scene with Daisy Johnson, where they say goodbye over radios, was not an intentional homage to the similar scene between Captain America and Peggy Carter in Marvel's , with the crew independently deciding to use the scenario because "There’s something heartbreaking about not being able to be face-to-face with the person." For the six-month time jump at the end of the episode, executive producer Maurissa Tancharoen called it "a spin on our usual cliffhanger", with Whedon explaining that the series would have picked up six months later for the fourth season anyway, "we just wanted to do it a little early" this time.
"Ascension" was first aired in the United States on ABC on May 17, 2016, as part of the two-hour third season finale.
Reception
Ratings
In the United States the episode received a 1.0/4 percent share among adults between the ages of 18 and 49, meaning that it was seen by 1.0 percent of all households, and 4 percent of all of those watching television at the time of the broadcast. It was watched by 3.03 million viewers.
