Kevin Escoffier, aboard PRB, triggered his distress beacon at 13:45 this afternoon. Jean Le Cam and three other boats have shifted course to assist. What is an EPIRB and what training is given to the top ocean skippers in this nightmare situation? Alex Thomson's insight into how he feels about retiring and the sleigh ride to and on the Southern Ocean. Footage ©Vendée Globe / Nefertiti Production

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