Hoping to rebound from their loss to the Detroit Lions, the Redskins played in the third and final game of the year in London against the Cincinnati Bengals. With a few minutes left in overtime, Dustin Hopkins missed a game-winning field goal and allowed the Bengals to take over. After that, Bengals' Andy Dalton fumbled and allowed the Redskins to take back the ball. A Hail Mary attempt failed, making the Redskins tie for the first time since 1997 when they tied 7-7 against the Giants.

Answer this question based on the article: What happened on the last play of the game?
A Hail Mary attempt failed