Starring Colin Baker as the Sixth Doctor and Bonnie Langford as Melanie Bush, this timey-wimey tale sees the pair cross paths with Colin Baker as the Sixth Doctor and Bonnie Langford as Melanie Bush...

With Evelyn gone, the Doctor sets course for his destiny... in the form of his first meeting with Miss Melanie Bush, a computer programmer from the village of Pease Pottage, currently busy rehearsing with the local Amateur Dramatic Society – and blissfully unaware that her future is on its way, in his TARDIS.

Make that two TARDISes. Because at that very moment, a slightly younger Doctor is flying into Pease Pottage, too – returning his future companion Melanie Bush to her rightful place and time, after they were flung together during the course of his Time Lord trial.

Time travel is a complicated business – the iguanadon terrorising Pease Pottage being a case in point. But how much more complicated could things possibly become, if the wrong Doctor were to bump into the wrong Mel?

Written by Matt Fitton, this madcap caper effortlessly partners two very different versions of the Sixth Doctor together for one adventure neither of them should be having. The perfect treat for any fan of Ol' Sixie, Doctor Who: The Wrong Doctors is available to download today for just £2.99. A thread discussing this release has been created on the Big Finish forum here.

The Doctor and Mel parted ways last month in our epic new release Doctor Who: The Sixth Doctor – The Last Adventure, bringing the Sixth Doctor's era to a close with a face-off with his twisted future incarnation, the Valeyard (Michael Jayston). You can order this special five-disc release today. Check out the trailer below.

The Sixth Doctor embarks on a whole new journey this month in Doctor Who: Criss-Cross, as he encounters his new companion Mrs Constance Clarke (Miranda Raison). Meanwhile, Mel's latest trilogy of adventures with the Seventh Doctor draws to a close in Doctor Who: Terror of the Sontarans.