Tonight’s television highlights include a political crisis docudrama, investigations into controversial wellness trends and Britain’s imperial past, plus programmes about emergency callouts, an awkward sex-party encounter and the Lucy Letby case.

The Wargame on Sky One features Michael Gove, Nicola Sturgeon and Harriet Harman simulating a cabinet response to escalating Russian aggression. Stacey Dooley examines “heightmaxxing” and leg-lengthening surgery on BBC One, while David Olusoga explores British institutions’ links to slavery on BBC Two; other programmes revisit violent emergencies, relationship chaos and challenges to the evidence used to convict Letby.