"Fight or Flight" is the 679th episode of Casualty and the 41st episode of the 23rd series.


Ruth tries to impress a surgeon who is shadowing her, but she remains awkward and unable to relax - even at a social event with Jay. Jordan considers sharing his secret with Zoe in an attempt to quell Adam's fears about his blossoming relationship with her, Jessica's desperation to be reunited with her children clouds her judgement, and Big Mac rescues an injured pigeon fancier.