Chain reaction for final five

COURSE director Jason “Foxy” Fox has given the recruits a few tips.

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Which is good as it’s going to be a tricky one. And by “tricky, I mean hour upon hour of unmitigated hell.

Like Eurovision? No, obviously not as hellish as that, but close.

This being the final episode, the five still standing - British competitors Ben Cohen, Dani Dyer and Gabby Allen, plus Aussies Mack Horton and Emily Seebohm - will soon hear which of them has made the grade, SAS-wise (assuming any of them have, which is by no means a given).