A card is selected (the 2D). The magician attempts to read spectator's mind and fails. The magician says, "I'm in trouble. If your driving in your car and you get in trouble, you call AAA (auto club). If you're a magician and you get in trouble, you call MMM. They will magically fax you an emergency card (shake your hip), ah, it just arrived." Reach in your pant's pocket and remove a small paper depicting a card back in black and red. "This tells me that your card was the 2S".
Emergency Card is turned over to show 2S. Spectator says that was not their card. "Then, your card must be the 5S". The Emergency Card is then unfolded to show the 5S. Again, spectator says no. "Was it a black card"? They inform you they picked a red card. "I see. That means your card must be the 7H" Emergency Card is unfolded to show 7H. "No! I'm positive you will see your card this time".
Emergency Card is unfolded to show all 52 cards (52 on 1). Do you see your card? You do! I knew it all the time. Which one was yours? The Two of Diamonds? Emergency Card is unfolded to show the 2D!