Looks like Kidder was just talking about Nieminen's playoff goals and assists, though that goal vs Ottawa was great.
The goal in question is likely this one from Game 6 vs Vancouver, which started with him crushing Salo and knocking the stick out of his hand before circling back with the puck and driving around the now-stickless defender:
https://streamable.com/y3cgms
The 4th goal that Kidder was trying to remember was against TB, game 2. Late when the game was out of hand and it was getting nasty Nemo collected a loose puck inside the blueline and ripped a slapper shortside to make it 4-1.