In this situation you have three choices:
1) Do nothing, surrender - probability of being killed 100% (bad option)
2) Fight like hell take a few of them with you - probability of being killed 99% (sort of a bad option depending on your mindset)
3) Run like hell, to fight another day - probability of getting killed 75%? (best of a bad set of options)
LOL. Those are some tough options.