Welcome to What\u2019s On, our weekly roundup of notable shows. Here is what\u2019s happening on TV from Sunday, September 21 to Saturday, September 27. All times are Eastern.<\/p>\n
After his guest role in Reservation Dogs<\/a>, Ethan Hawke teams up again with creator Sterlin Harjo for this comedy noir about a \u201c\u201ctruth-storian\u201d who\u2019s determined to unearth corruption in Tulsa, Oklahoma. The stacked cast also includes Tim Blake Nelson, Kyle MacLachlan, Kaniehtiio Horn, Jeanne Tripplehorn, and Keith David. Read The A.V. Club\u2018s review of the show<\/a>.<\/p>\n Feel Good\u2018s Mae Martin<\/a> returns to Netflix in this thriller, starring as a cop who moves to an idyllic town with his pregnant wife (played by Sarah Gadon) and soon suspects that a bigwig (portrayed Toni Collette) is behind the disappearance of local teens. Look for the The A.V. Club\u2018s review of the series on Thursday.<\/p>\n Jessica Chastain leads this eight-parter, which is based on a Cosmopolitan piece<\/a> about an undercover investigator who infiltrates online hate groups to prevent attacks. Created by The Americans writer Melissa James Gibson, the show also features Nnamdi Asomugha, James Badge Dale, Michael Mosley, and Dagmara Dominczyk. The A.V. Club\u2018s review publishes Thursday.<\/p>\n Also airing<\/p>\n Hotel Costiera\u00a0(Prime Video, Wednesday, 3:01 a.m.)<\/p>\n<\/p>\n This series centers on a former Marine (played by Jesse Williams) who\u2019s now working at a luxury hotel on the Amalfi Coast. When the resort owner\u2019s daughter vanishes, he is tasked with tracking her down.<\/p>\n House Of Guinness\u00a0(Netflix, Thursday, 3:01 a.m.)<\/p>\n<\/p>\n Steven Knight<\/a> tackles the saga of the Guinness siblings in this period drama. After the family patriarch dies in the 1860s, his famous brewery is left in the hands of his feuding children. Anthony Boyle, Louis Partridge, Jack Gleeson, and Emily Fairn co-star.<\/p>\n Can\u2019t miss recaps<\/p>\n Task<\/a> (HBO, Sunday, 9 p.m.)\u00a0<\/p>\n Alien: Earth<\/a>\u00a0(FX, Tuesday, 9 p.m., season one finale)<\/p>\n Gen V<\/a>\u00a0(Prime Video, Wednesday, 3:01 a.m.)<\/p>\n Peacemaker<\/a>\u00a0(HBO Max, Thursday, 9 p.m.)\u00a0<\/p>\n Arriving now<\/p>\n Tulsa King<\/a>\u00a0(Paramount+, Sunday, 3:01 a.m., season three premiere)\u00a0<\/p>\n Brilliant Minds\u00a0(NBC, Monday, 10 p.m., season two premiere)\u00a0<\/p>\n