It's the penultimate weekend of the League One season and it promises to be a thrilling and nerve-shredding couple of hours on Saturday afternoon for fans of clubs at both end of the table.

Plymouth and Ipswich hope to be celebrating automatic promotion in front of their own fans while there is a fascinating three-into-two scrap for the playoff places involving Bolton, Derby and Peterborough.

And every bit as important is the showdown at the Wham Stadium between Accrington, in 23rd, and Cambridge, one place higher, with both clubs desperate for the win to improve their survival prospects.

Explore all the possibles for promotion and relegation across the Football League's three tiers are in our handy guide to promotion and relegation permutations.

But it's Sheffield Wednesday's demise which is the focus of part one of a League One acca which works out around 48/1. 

Saturday League One Accumulator

Shrewsbury draw no bet v Sheff Wed @ 10/3

Lincoln City to beat Morecambe @ 9/5

Ipswich to score in both halves v Exeter 5/6

Charlton to beat Port Vale @ 6/5

All odds are correct at time of writing and subject to change 

Shrews can profit from Owls' wobble

What	Shrewsbury v Sheffield Wednesday
Where	New Meadow, Shrewsbury
When	15:00, Saturday 29th April
Odds	Shrewsbury 5/1, Draw 14/5, Sheff Wed 11/20

It's been a disappointing end to the season for Wednesday and a rotten run for the Shrews, though they can still give the Owls a game at the New Meadow.

It is one point out of a possible 21 for Steve Cotterill's men, hence the 5/1 quote against a Wednesday team almost certainly heading for the playoffs.

But Salop have been savaged by injuries – they named just five on the bench at Bolton – and a crippling injury list which is improving. Two more players – Tom Flanagan and Ryan Bowman – are also available after bans.

Wednesday have found the last month tough and even recent wins over Bristol Rovers and Exeter were edgy and unconvincing. Shrewsbury can get something out of this, are overpriced and even the 10/3 draw no bet is appealing. 

Freewheeling Lincoln to expose Shrimpers' nerves

What	Morecambe v Lincoln City
Where	Mazuma Stadium, Morecambe
When	15:00, Saturday 29th April
Odds	Morecambe 11/8, Draw 5/2, Lincoln 9/5

Lincoln City have had precious little tangible on the line for several weeks but have still been going well and can be trusted to deliver the goods at Morecambe.

The Imps, a classic mid-division side, had been unbeaten in six – featuring 2-0 wins at both Plymouth and Wycombe – before Saturday's no-show at home to bogey side Burton.

That looks like a one-off and they'll fancy their chances at Morecambe, who are under a new kind of pressure and it's hard to know how they'll cope.

Relegation certainties up until a couple of weeks ago, the Shrimpers have taken seven points from nine to give themselves a lifeline – but the realisation of the stakes and the new-found hope brings different pressures.

This is a free hit for Lincoln who have also recently drawn 1-1 at Sheffield Wednesday and can land 9/5 odds. 

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Exeter no match for high-flying Ipswich

What	Ipswich v Exeter
Where	Portman Road, Ipswich
When	15:00, Saturday 29th April
Odds	Ipswich 2/9, Draw 5/1, Exeter 12/1

The plaudits continue to pour in for Ipswich who can cap a stunning campaign by securing promotion with a routine win over Exeter.

In fact, Exeter look exactly the type of opponent Ipswich would have prayed for given there will be plenty of tension in the air at Portman Road.

The Grecians have lost five in a row – admittedly against good opponents – and have not won (or kept a clean sheet) in seven on their travels.

They lost 2-0 at home to Ipswich in November, Kieran McKenna's men scoring in either half, a feat they can repeat on home soil at odds of 5/6.

Ipswich have scored 14 in their last four, will be desperate to score early to settle any nerves and if they do that the floodgates could open.

Get your fix of the Addicks in home finale

What	Charlton v Port Vale
Where	The Valley, London
When	15:00, Saturday 29th April
Odds	Charlton 6/5, Draw 9/4, Port Vale 23/10

As the only side in England to have both a 6-0 win and a 6-0 loss during April, it's safe to say Charlton's consistency can be questioned.

But they have definitely improved since the turn of the year under Dean Holden and should be trusted to see off Port Vale at 6/5 in their final home game.

Vale were without a win in eight before last week's 2-0 win over Bristol Rovers, a side who have long since downed tools.