We take a look back at the 2015.16 season.A new month, and a first three points back in Sky Bet League 1, as Blues got their first win of the campaign in front of the TV cameras against Peterborough United at Roots Hall.
Goals from Adam Barrett and summer signing, Noel Hunt secured a first class victory over Posh.
The Blues began to knock at the door when David Mooney’s header cracked the bar before eventually going ahead when Barrett netted from close range.
Michael Bostwick's drove one against the woodwork in response, but Hunt headed the home side's second goal from Ben Coker's free-kick.
Marcus Maddison's 90th-minute strike proved nothing more than a consolation as the day belonged to Southend.
It wasn’t to be back-to-back victories for Phil Brown’s men though as Shrewsbury Town - promotion rivals in the previous campaign - stole a 1-0 victory at Roots Hall with a Nat Knight-Percival second-half header.
Blues were then thrown into the Lion’s den at Millwall, but this time came out triumphant after goals from Barrett and another new boy, David Mooney gave Phil Brown’s side all three points.
Despite being under the cosh early on, Southend found themselves ahead in the first-half courtesy of Mooney's close-range header.
The visitors lead was two to the good not long after the break, as Adam Barrett nodded in Michael Timlin's cross.
Millwall came back baying for a route back into the match, but Brown's side held on.
It was three-times a charm as Blues, casting their magic upon the third-tier, made it three wins on the spin as they followed up the Millwall win with back-to back victories.
First up was Scunthorpe United and Blues showed steel against the Iron as left-back Ben Coker bagged the winner and assisted Timlin as Southend came from behind to win 2-1.
To round off an impressive month, Southend went away from Crewe Alexandra with a 2-1 victory after a brace from Wembley saviour, Joe Pigott.
Blues took the lead inside the first couple of minutes of the second half as the Charlton loanee was there to turn in Ryan Leonard's right-wing cross.
The Railwaymen levelled things up when Brad Inman raced clear to slot past Dan Bentley, but Blues were soon back in the ascendency when Pigott headed home.
The league was now having to sit up and take notice of Southend; a team who had stepped up a division, but was also stepping up a gear or two.
September saw Southend finish the month in 10th position on 15 points.