Get dealt 2 aces: There are 4 aces out of 52 cards to start so the chance of the first card being an ace is 4/52 and the chance the second card will be an ace is 3/51 since we have dealt one card and we're assuming it was the ace. So total odds are 4/52 * 3/51 = 1/220
The answer is flip 5 tails in a row with a chance of survival at 1 out of 32 times. Better hope you don't find yourself in this predicament.