[18] The inspiration for the documentary series came from McElhenney's viewing of Chef's Table, Last Chance U and Cheer, and his subsequent realization that all of those were produced by Boardwalk Pictures, who he approached to partner with.

Emotive issues such as autism, bereavement, divorce, mental health, football hooliganism, cancer, stillbirth, disability and injuries ending players' careers are featured through following the lives of different individuals involved with the club.

[citation needed] The cast for the series was stated as the following:[27] After the disappointment of the 2020–21 season, the board begins to rebuild the team: Fleur Robinson from Burton Albion F.C.

After spending months watching games from across the Atlantic, McElhenney and Reynolds finally arrive to Wales, to see Wrexham play in person against Maidenhead United F.C.

The next day, they meet with Harvey and Parkinson to discuss their approach to the next transfer window and how they should budget for it; they then hold a press conference at the Racecourse for journalists, and visit the team during one of their training sessions.

As Wrexham continue to march towards the top spot in the league, peripheral issues begin to arise: defender Cameron Green expresses dissatisfaction with the lack of playtime he's been getting, while goalkeeper Lainton suffers a dislocated wrist during the game against Bromley, which takes him out of the team for at least three months.

Wrexham, unbelievably, comes back into the game and wins it 6–5 due to a Jordan Davies brace in injury time, but fans continue to blame Dibble for the team's struggle.

The match itself proves difficult, with both teams giving the best they got, with goalkeepers Christian Dibble and Ellery Balcombe instrumental in keeping the game goalless, until Bromley striker Michael Cheek scores in the 64th minute; McElhenney notes that he's not yet seen Wrexham win in person.

Desperate to win, Parkinson substitutes in striker Jake Hyde, who in the last minute finds a stray ball and equalizes with a diving header – only to be disallowed due to offside.

After footage of McElhenney embracing Reynolds – instead of Olson, his wife – at the FA Trophy final goes viral, McElhenney and Reynolds dedicates the episode to explore platonic relationships between men, bringing in author Liz Plank to help explain the dynamics of their "bromance"; Plank contends that societal pressures keep men from being able to express affection towards each other, as it isn't deemed "masculine" enough, and that sports allows a safe space to be able to do that.

The next day, during an away match against Boreham Wood, unaware of the 3pm blackout law, McElhenney suggests putting the private live feed from the documentary cameras up on the televisions in The Turf.

During the match, Wrexham goes into the game with tremendous energy, with Sam Dalby and Elliot Lee taking an early lead, and Tom O'Connor and Mullin rounding it up to a 4–1 by the 60th minute; the match tightens, however, when Coventry closes up to 4–3, and it takes Howard's last moment saves to keep the score as a victory – as both McElhenney and Reynolds are watching from the United States, an unexpected ESPN broadcast disruption adds to their anxiety, but the team eventually prevails.

The town is ecstatic about the results, and everyone looks forward to the next opponent in the fourth round: Sheffield United, a team who also plays in the EFL Championship, but is expected to be promoted to the Premier League.

The game at the Racecourse starts nightmarish: Oli McBurnie takes the lead for Sheffield in the second minute, and both centre-backs Hayden and Jordan Tunnicliffe have to come off with an injury.

Mullin puts victory and another giant killing in reach with a 86th minute goal, but John Egan equalizes for Sheffield in injury time, sending the two teams to a replay at Bramall Lane; despite the disappointment, a visibly shaken Reynolds, who witnessed the game in person, on the verge of tears tells the players in the locker room that what they have achieved that day is extraordinary.

Both fans and staff continue to trust Howard, but the club wants to ensure squad depth in the position, and takes an opportunity to sign retired former England national Ben Foster; Foster credits Wrexham for kickstarting his legendary professional career, having played for the club in 2005, but has been retired for nine months at the age of 40, and has been spending his time running a successful YouTube channel and – like Howard – a podcast.

Media and football fans are skeptical of the move, labeling it a "money grab", but Foster makes it clear on his podcast that his financial terms on the contract are modest, and that his main motivation is to get the club promoted.

The players all express anxiety about the chance to play in front of such a large home crowd, and the stadium eventually is filled with 9,511 ticket holders – near double the previous record.

McElhenney and Reynolds arrive in Wales for the match, and are awarded Freedom of the Borough for Wrexham, but both them, the players, and the fans admit they can only ever focus on the upcoming title race; management reiterates that promotion at this point is necessary to keep the club financially sustainable.

The decisive match against Boreham Wood begins with an immediate shock as Lee Ndlovu lobs Foster and takes the lead for the visitors with less than a minute played.

When referee Scott Jackson blows the final whistle at 3–1, emotions run high as the euphoric supporters invade the pitch, carrying the players on their shoulders, with the 15-year curse ending with Wrexham's promotion back to the football league.

While his condition is eventually stabilized in the hospital, he is prohibited from immediately flying back to the UK, and is forced to stay in California for two weeks, missing the start of the season.

As the club continues to claw its way towards the top of League Two, the town begins to feel the effects as the new found focus on the town allows residents to open businesses: McElhenney, as part of his "birthday war" with Reynolds, announces to renovate an iconic part of the town as a park, Zimbabwean immigrant Valerie Creusailor talks about her local condiment business, Neil Roberts explains his upcoming phase in life after football as a bar owner, and Ollie Palmer talks about his new clothing line; both Roberts and Palmer emphasize that football players have a relatively short career, and that entrepreneurship has become a necessity in the modern footballing world to allow for a living post-retirement.

Despite having one of the best home record in the league, at the turn of the season, Wrexham continues to struggle with its away performances, slowly sliding out of the Top 3 to the playoff places; fans begin to feel uneasy and question Parkinson's match decisions and Mullin's fitness; while Arsenal decides not to recall Okonkwo who can then fill out the rest of the season at Wrexham, Mendy is called up to the Gambia national football team to represent his home country at the 2023 Africa Cup of Nations.

[39] The executive producers of the series were stated to be Rob McElhenney, Ryan Reynolds, Nick Frenkel, John Henion, Andrew Fried, Dane Lillegard, George Dewey and Sarina Roma.

[41] Alex Webb of Bloomberg News estimated that the first season of the show would bring Reynolds and McElhenney a revenue of £600,000, which would have contributed considerably to the club's budget that year.

[57][59] Describing the series, Nick Grad, FX Entertainment's original programming president said "Rob and Ryan will take fans inside the sport as never before, pairing their genuine love for the game with the welcome challenge of building on the heritage of this club".

[61][62] The series' official synopsis read "From Hollywood to Wales, from the pitch to the locker room, the front office to the pub, Welcome to Wrexham will track Rob and Ryan's crash course in football club ownership and the inextricably connected fates of a team and a town counting on two actors to bring some serious hope and change to a community that could use it".

The website's critics' consensus reads, "Plunking two famous funnymen into the unpredictable journey of a sports documentary, Welcome to Wrexham is a calculated gamble that pays off.

The website's critics consensus reads, "While its marquee stars are plenty welcoming all their own, Wrexham smartly spends its sophomore season focused on the community itself to inspiring effect.