Question: How many episodes were in the first season of the NBC supernatural drama series in which the premier was October 28, 2011 and lasted until March 31, 2017?
Context: The Returned (French: Les Revenants ) is a French supernatural drama television series created by Fabrice Gobert, based on the 2004 French film "They Came Back" ("Les Revenants"), directed by Robin Campillo.  The series debuted on 26 November 2012 on Canal+ and completed its first season, consisting of eight episodes, on 17 December.  In 2013, the first season won an International Emmy for Best Drama Series. The fifth season of the NBC American supernatural drama series "Grimm" was announced on February 5, 2015.  It premiered on October 30, 2015 and concluded on May 20, 2016.  The season consisted of 22 episodes.  The series was created by David Greenwalt, Jim Kouf and Stephen Carpenter, and produced by NBC, GK Productions, Hazy Mills Productions, and Universal Television.  It follows a descendant of the Grimm line, Nick Burkhardt, as he deals with being a cop, and trying not to expose his secret as a Grimm. "Grimm" was an American dark fantasy crime drama television series created by Stephen Carpenter, David Greenwalt and Jim Kouf.  The show ran, on NBC, from October 28, 2011 to March 31, 2017.  The series follows homicide detective Nick Burkhardt (David Giuntoli) who learns that he is a descendant of a group of hunters known as "Grimms", who fight to keep humanity safe from the supernatural creatures of the world. The sixth and final season of the NBC American supernatural drama series "Grimm" was announced on April 18, 2016.  It premiered on January 6 and concluded on April 7, 2017.  The season consisted of 13 episodes.  The series, created by David Greenwalt, Jim Kouf and Stephen Carpenter, is produced by NBC, GK Productions, Hazy Mills Productions, and Universal Television.  The main plot follows a descendant of the Grimm line, Nick Burkhardt, as he deals with being a cop, and trying not to expose his secret as a Grimm. The first season of the NBC American supernatural drama series "Grimm" premiered on October 28, 2011, and concluded on May 18, 2012.  It consisted of 22 episodes.  The series, created by David Greenwalt, Jim Kouf and Stephen Carpenter, follows the last known descendant of the Grimm line, Nick Burkhardt, as he deals with being a cop, and trying not to expose his secret as a Grimm. "Fallout" is the eleventh episode of the NBC supernatural drama series "Heroes". "Tru Calling" is a supernatural drama that aired on the Fox Network.  The series premiered on October 30, 2003, and ran for two seasons before it was cancelled during its second season.  The twenty-fifth episode, "Enough", on April 21, 2005 was the final episode to be shown by Fox.  Season two premiered in New Zealand on the TV3 network on February 4, 2005 and ended on March 11, 2005.  Season two premiered in the United States on March 31, 2005 and five episodes were shown.  The final episode was never aired on Fox due to its Christmas theme and tentative April airdate, though it was shown on the Sci Fi Channel during a marathon on January 21, 2008.  The series ran for a total of 26 episodes. After leaving Cambridge University, John Jackson developed and script edited the ITV soap Night and Day.  Altogether he wrote 35 episodes for the TV Series.  In 2009 he wrote the episode "The King Is Dead, Long Live the King…" for the BBC One series Robin Hood.  From 2010 to 2012 he wrote two episodes of the serial drama Lip Service.  From 2011 until 2013 he wrote three episodes for the supernatural drama Being Human.  This brought him a Writers' Guild of Great Britain award for Best TV Drama Series.  He also wrote two episodes for the "Being Human" spin off Becoming Human.  In 2014 Jackson wrote an episode for another BBC Three series, In the Flesh. Grimm is an American fantasy police procedural drama television series created by Stephen Carpenter and Jim Kouf and produced by Universal Television for NBC.  The series aired from October 28, 2011 to March 31, 2017, for 123 episodes, over six seasons.  The series' narrative follows Portland Homicide detective, Nick Burkhardt (played by David Giuntoli), who discovers he is a "Grimm", the latest in a line of Guardians who are sworn to keep the balance between humanity and mythological creatures, known as Wesen.  The series features a supporting cast, consisting of Russell Hornsby, Bitsie Tulloch, Silas Weir Mitchell, Sasha Roiz, Reggie Lee, Bree Turner and Claire Coffee. "The End" is the series finale of the supernatural drama television series "Grimm", consisting of the 13th episode of season 6 and the 123rd episode overall, which premiered on March 31, 2017, on the cable network NBC.  The episode was written by series co-creators David Greenwalt and Jim Kouf and was directed by Greenwalt.
Answer: 22