S4·E10 The Enemy Within

Ros has yet another brush with death, this time because she was shot in the head by Zephyr. As she fights for her life in hospital throughout the episode, Beckett is desperately trying to find the people (Wymark and Zephyr) who put her there. Zephyr and Wymark end up in the same hospital as there is the new G-5 chip there which they need to gain enough processing power to con a bank into giving the m a few million pounds. Many things interrupt the surgery being performed on Ros (by a rather eccentric surgeon) including a power cut brought on by Wymark shooting the main power cables, leaving it up to Beckett and Ed to put it back to normal (which they manage to do, of course). At the end, Ros wakes up and is OK, and Beckett actually kisses her, putting the hope in everybody's hearts that they are actually going to get back together. However, this vision is quickly destroyed, as after Alex and Adam's wedding, Beckett and Christa are talking together and Christa practically proposes to h