In the early hours of 24 February 2022, Russia launched a brutal invasion of its neighbour, Ukraine. True to his yearslong strategy of lies and disinformation, Vladimir Putin said he had launched a “special miliary operation” to “denazify Ukraine”. “It is not our plan to occupy the Ukrainian territory,” said Putin.

Ukraine is now under siege, bombarded from all sides. Cruise missiles and cluster bombs have targeted civilians – and a Holocaust Memorial. In this first episode of a new season and a new world, we hear from Ukrainians on the ground in Kyiv as they prepare to fight for their survival, their families and their nation. And we hear from people in Russia. It seems that few beyond Putin have any appetite for war, least of all nuclear conflict. Kira Rudik leads a Ukrainian political party: she tells us why she’s taken up arms. Back in Westminster, Chris Bryant MP explains how this invasion was always on the cards, and what on earth is happening inside Vladimir Putin’s head.