The story of David and Goliath is this: Goliath is a giant of a man, and a boy called David faces him in battle. Goliath has height and heft and probably weapons — it's been a while since I've read much in the way of Bible stories — and David has only a slingshot. But David manages to kill him anyway and his people win the battle. He's up against an unimaginably strong foe, in a situation where he has no hope of coming out alive, but he does.
When the odds are against them is when it's best for them to come out victorious. Unless you can come up with a good twist where they fail, I think letting them beat the odds is your best bet.
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The story of David and Goliath is this: Goliath is a giant of a man, and a boy called David faces him in battle. Goliath has height and heft and probably weapons — it's been a while since I've read much in the way of Bible stories — and David has only a slingshot. But David manages to kill him anyway and his people win the battle. He's up against an unimaginably strong foe, in a situation where he has no hope of coming out alive, but he does.
When the odds are against them is when it's best for them to come out victorious. Unless you can come up with a good twist where they fail, I think letting them beat the odds is your best bet.