Probably one of the most talked about changes in the 2015 DAS guidelines will be Plan D. Whilst on a very basic level the recommendations have not altered, the emphasis on how to practically manage a 'can't intubate, can't oxygenate' scenario are quite a shift from many anaesthetist's current approach. Dr Ravi Bhagrath from The Royal London Hospital explains the rationale, research and most importantly, walks us through the new 'scalpel, bougie, tube' technique DAS now recommend.