December 2020 began with a late defeat at Blackburn Rovers, before Derby County were 1-0 victors at The Den as 2,000 supporters briefly returned to SE16.
A London derby with Queens Park Rangers ended in a 1-1 draw, before contrasting away trips resulted in a 3-0 loss at Middlesbrough and an outstanding 2-0 victory at Bristol City, in which Tom Bradshaw and Mason Bennett found the net.
Bradshaw scored for the second successive game as his partnership with Jon Dadi Bodvarsson showed promise in a 1-1 draw with Nottingham Forest at The Den in the lead-up to Christmas, but a COVID-19 outbreak amongst the squad put pay to The Lions' festive fixtures, meaning the next time they took to the field was on 2nd January 2021 - a game they lost to Coventry City.
Ken Zohore and Shaun Hutchinson's goals eased The Lions through to Round Four of the Emirates FA Cup at Vanarama National League side Boreham Wood on 9th January, before the rearranged trip to AFC Bournemouth three nights later - originally scheduled for Boxing Day - saw the emergence of Danny McNamara, making his Sky Bet Championship debut after starting and impressing at Meadow Park. Matt Smith stepped off the bench to equalise with his first touch at the Vitality Stadium.
Nottingham Forest defeated Millwall 3-1 at the City Ground on 16th January, but McNamara and another Lion - Ben Thompson - revelled in the conditions at the John Smith's Stadium on the 20th as Scott Malone's early goal saw The Lions dig in for a 1-0 success at Huddersfield Town.
Bristol City ended the club's interests in the Emirates FA Cup at the Fourth Round stage the following weekend, before three consecutive draws took place, two at home against high-flying Watford and Norwich City and one on the road at Cardiff City.
On 6th February, The Lions turned on the style and demolished Sheffield Wednesday 4-1 at The Den, including the 2020/21 Goal of the Season strike from Malone, before a superb comeback win at Reading was backed up by a home victory against Birmingham City.
Millwall were stifled by Wycombe Wanderers in a 0-0 draw on 20th February, with George Evans being in the right place at the right time to nod home a last-gasp equaliser at Luton Town three nights later. A narrow loss at Play-Off chasing Barnsley brought February to a close.
Take a look at a selection of images from Part Two of our 2020/21 season review above.