Simu Liu and Melissa Barrera in 'The Copenhagen Test.' Peacock Share on Facebook Share on X Google Preferred Share to Flipboard Show additional share options Share on LinkedIn Share on Pinterest Share on Reddit Share on Tumblr Share on Whats App Send an Email Print the Article Post a Comment Logo text The fifth episode of Peacock's The Copenhagen Test begins with an extended "Previously On..." sequence. After a brief flashback, the main character has his own series of memories related to things that happened previously on the show.