The first season of Krypton was announced on May 1, 2017 and premiered on March 21, 2018 on Syfy and concluded on May 23, 2018. This season consisted of 10 episodes altogether.


Set two generations before the destruction of the legendary Man of Steel’s home planet, Krypton follows Superman’s grandfather Seg-El — whose House of El was ostracized and shamed — as he fights to redeem his family’s honor and save his beloved world from chaos.


Main cast

Recurring cast



# Episode name Directed by Written by Original airdate
1 "Pilot" Ciaran Donnelly & Colm McCarthy Teleplay & Story by: David S. Goyer & Ian Goldberg March 21, 2018
Superman’s grandfather, Seg-El, learns Krypton is in danger of being destroyed so that his future grandson will never be born.
2 "House of El" Ciaran Donnelly Cameron Welsh March 28, 2018
After suffering a tragedy, Seg is forced to adjust to a new life, a new rank and a new threat.
3 "The Rankless Initiative" Steve Shill Nadria Tucker April 4, 2018
During a military crackdown on Seg’s home district, Seg and Adam Strange race to find a deadly Sentry.
4 "The Word of Rao" Keith Boak Luke Kalteux April 11, 2018
Seg is approached by a Black Zero leader as Rao finds a scapegoat for the failed Rankless Initiative.
5 "House of Zod" Julius Ramsay Lina Patel April 18, 2018
Jayna grapples with her torn loyalties as Seg fights for survival within the heart of Black Zero.
6 "Civil Wars" Kate Dennis Doris Egan April 25, 2018
Seg is faced with an impossible choice that will shape the El legacy and the fate of the universe.
7 "Transformation" Metin Hüseyin David Paul Francis May 2, 2018
After a failed coup, Daron punishes the conspirators; Lyta and Dev-Em go in search of Jayna.
8 "Savage Night" Marc Roskin David Kob May 9, 2018
A resistance movement begins to form to impede the Voice of Rao’s increasing power and influence.
9 "Hope" Lukas Ettlin Chad Fiveash & James Stoteraux May 16, 2018
Seg must decide if he is willing to make the ultimate sacrifice in service of the greater good of Kandor.
10 "The Phantom Zone" Ciaran Donnelly Chad Fiveash & James Stoteraux & Cameron Welsh May 23, 2018
The protective dome of Kandor has been disabled, allowing Brainiac to arrive and collect the city.

Image gallery


Community content is available under CC-BY-SA unless otherwise noted.