Nicklas Backstrom got the Caps on the board at 13:41 of the third period with his second goal of the playoffs.
The goal tied the game at 1-1 and has sent the game to overtime.
After being out-shot 33-13 through two periods, the Caps outshot the Islanders 12-7 in the third.
The @washcaps are playing in their 50th OT playoff game in franchise history. The @NYIslanders are playing in their 43rd all-time. #WSHvsNYI
— NHL Public Relations (@PR_NHL) April 19, 2015