<P> Agents of S.H.I.E.L.D. is an American television series created for ABC by Joss Whedon, Jed Whedon, and Maurissa Tancharoen, based on the Marvel Comics organization S.H.I.E.L.D. (Strategic Homeland Intervention, Enforcement and Logistics Division), a fictional peacekeeping and spy agency in a world populated with superheroes and numerous supernatural phenomena . The series is produced by ABC Studios, Marvel Television, and Mutant Enemy and is set in the Marvel Cinematic Universe, sharing continuity with the films in that franchise . It revolves around the character of Phil Coulson, with Clark Gregg reprising his role from the film series . </P> <P> The first season sees S.H.I.E.L.D. Agent Phil Coulson putting together a small team of S.H.I.E.L.D. agents to handle strange new cases . They investigate Project Centipede and its leader, "The Clairvoyant", eventually uncovering that Project Centipede is backed by the organization Hydra, which has infiltrated S.H.I.E.L.D. In the second season, following the destruction of S.H.I.E.L.D., now - Director Coulson and his team look to restore trust from the government and public while dealing with Hydra and the newly revealed Inhumans, people who possess special abilities . Coulson's work is further complicated by the appearance of another faction of S.H.I.E.L.D. agents who do not trust his leadership . During the third season, Coulson begins a secret mission to assemble a team of Inhumans to deal with new threats to the world, while Hydra returns its ancient, banished Inhuman leader, Hive, to Earth . After the defeat of Hive and with Hydra destroyed, S.H.I.E.L.D. is made a legitimate organization once again for the fourth season, with the signing of the Sokovia Accords . Coulson returns to being a field agent, due to the world believing he is dead, and is tasked with tracking down more enhanced people--including Robbie Reyes / Ghost Rider--while Agent Leo Fitz and Dr. Holden Radcliffe complete their work on Life Model Decoys . The fifth season sees Coulson and members of his team abducted to deep space in the future, where they must try to save humanity while figuring out how to get home . </P> <P> Agents of S.H.I.E.L.D. was renewed for a fifth season of 22 episodes on May 11, 2017, which began airing on December 1, 2017 . As of February 2, 2018, 98 episodes of Agents of S.H.I.E.L.D. have aired . </P> <Table> <Tr> <Th_colspan="2"> Season </Th> <Th_colspan="2"> Episodes </Th> <Th_colspan="2"> Originally aired </Th> <Th_colspan="2"> Nielsen ratings </Th> </Tr> <Tr> <Th> First aired </Th> <Th> Last aired </Th> <Th> Rank </Th> <Th> Average viewers (in millions inc . DVR) </Th> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 22 </Td> <Td_colspan="1"> September 24, 2013 (2013 - 09 - 24) </Td> <Td> May 13, 2014 (2014 - 05 - 13) </Td> <Td> 43 </Td> <Td> 8.31 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 22 </Td> <Td_colspan="1"> September 23, 2014 (2014 - 09 - 23) </Td> <Td> May 12, 2015 (2015 - 05 - 12) </Td> <Td> 76 </Td> <Td> 7.09 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 22 </Td> <Td_colspan="1"> September 29, 2015 (2015 - 09 - 29) </Td> <Td> May 17, 2016 (2016 - 05 - 17) </Td> <Td> 85 </Td> <Td> 5.52 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> </Td> <Td_colspan="2"> 22 </Td> <Td_colspan="1"> September 20, 2016 (2016 - 09 - 20) </Td> <Td> May 16, 2017 (2017 - 05 - 16) </Td> <Td> 110 </Td> <Td> 4.22 </Td> </Tr> <Tr> <Td> </Td> <Td_colspan="1"> 5 </Td> <Td_colspan="2"> 22 </Td> <Td_colspan="1"> December 1, 2017 (2017 - 12 - 01) </Td> <Td> May 18, 2018 (2018 - 05 - 18) </Td> <Td> TBA </Td> <Td> TBA </Td> </Tr> </Table>

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