Wet Hot American Summer: Ten Years Later (Netflix) – This new eight-part series is a followup to the original 2001 cult film and 2015’s prequel series, checking in with the gang at their 10-year reunion. The cast is incredible: Amy Poehler, Adam Scott, Chris Meloni, Chris Pine, David Hyde Pierce, Elizabeth Banks, Janeane Garofalo, Jason Schwartzman, Josh Charles, Ken Marino, Kristen Wiig, Dax Shepard and Paul Rudd – those are just a few of the big names.
WE Day (8 p.m., CBS) – A celebration of young people, because ... youth is not celebrated enough in this country.
Great British Baking Show (9 p.m., UNC-TV) – Two new shows close out the season. First, four bakers attempt a difficult French pastry. At 10, The Royal Bake Off features meringues.
Son of Sam: The Hunt for a Killer (9 p.m., Investigation Discovery) – This two-hour special sheds light on the 40th anniversary of the New York serial killer case that brought the city – and the media – to its knees.
Wynonna Earp (10 p.m., Syfy) – Wynonna asks Doc to make an impossible choice.