Wilson made it 2-0 at 4:55 of the second period on a one-timer from the left faceoff circle. Wilson received the pass from Johansson on the rush and one-timed it past Rinne for his fifth of the season.
"[Johansson] is my best friend right now, he gave me an unbelievable pass," Wilson said. "It's nice to have Marcus back. We've got so many good players in this locker room. Whoever you're playing with, you're trying to make the best of each situation. [Johansson], [Chimera] and I have kind of a weird, good chemistry going. We don't know what to kind of credit it to, but that's an all-time pass that [Johansson] gives me there, and I was lucky enough to put it in."
Predators forward Filip Forsberg scored his 16th of the season on the power play to make it 2-1 at 14:42. Forsberg entered the zone and took a wrist shot that beat Capitals goalie Braden Holtby over the shoulder.
Justin Williams scored his 17th of the season to give Washington a 3-1 lead at 5:00 of the third period. Forward Evgeny Kuznetsov passed the puck to Williams, who was able to corral it and slide it under Rinne.
Johansson extended the Capitals lead to 4-1 at 8:03, which proved to be the game-winner, on a wrist shot from the slot. Defenseman Karl Alzner took the original shot, Williams got the rebound to the slot and Johansson put it into a wide open net for his 14th of the season.