Zian Flemming scored three and Charlie Cresswell added a fourth after an own goal and Ched Evans scoring his third in two games had overturned a two-goal deficit for Ryan Lowe’s side.
In the end, PNE slumped to defeat and this is how we rated the players on the day...
13. Ben Woodburn - 6
Didn't really get into the game after coming off the bench, missing the foothold that Browne and Brady were giving them, PNE ended up just sinking in the match. Photo: CameraSport - Rich Linley
14. Daniel Johnson - 6
Was left to huff and puff with not much happening when he came on with just over 10 minutes to go, Millwall seeing out the game comfortably. Photo: CameraSport - Rich Linley
15. Sean Maguire - 6
Barely got a touch as the Lions were confidently keeping PNE at bay in the closing stages. Photo: CameraSport - Rich Linley