Erik once recruited pregnant women into a CIA program, code name UTRAX, where the children's DNA was enhanced in order to create super-soldiers.

Executive producers were set to include Marty Adelstein, Becky Clements, Scott Nemes, and JoAnn Alfano.

[4][5][6][7] On February 8, 2018, it was announced that the series would be directed by Sarah Adina Smith and that Working Title Television, with executive producers Tim Bevan and Eric Fellner, had joined the production.

[3] On February 8, 2018, it was announced that Mireille Enos, Joel Kinnaman, and Esme Creed-Miles had been cast in the series' lead roles.

[19][20] On February 3, 2019, coinciding with the broadcast of a teaser for the series during Super Bowl LIII, the first episode was made available on Amazon Video as a time-limited preview for 24 hours.

The website's critical consensus reads, "A gritty reimagining of the 2011 film, Hanna adds new wrinkles to the mythology and texture to the titular assassin – though the series' long-winded journey may try the patience of viewers who want their violent fables concise.

[23] Nick Allen of RogerEbert.com gave the series a negative review, saying that "it's one of the more maddening examples in recent film adapting, and not just because it's so similar to its singular 2011 parent, Joe Wright's Hanna.