via the NHL Situation Blog,

At 16:45 of the second period in the San Jose Sharks/New York Rangers game, the Situation Room initiated video review to further examine Carl Hagelin's wraparound attempt on the San Jose net. No camera angles provided to the Situation Room provided a clear image of the puck completely across the goal line. As a result, video review was inconclusive, therefore the referee's call on the ice stands - no goal New York Rangers.

Watch the video below and start at the 1:12 mark when the review process begins...

added 7:44pm, Another video added below...