DOCUMENTARY Navalny BBC2, 9pm

It’s fair to say that Alexei Navalny has enemies in high places – as well as being a lawyer, he is the charismatic Russian opposition leader. In 2020 he survived an attempt to assassinate him by novichok poisoning, and this acclaimed feature-length documentary follows his efforts to unmask those responsible. Chillingly, he and his team find evidence linking the crime to the Kremlin.