The special diaries showed Gary - played by Mikey North - as he left the Street and faced the Taliban. However, viewers will now be able to fill in the gaps having witnessed Gary's struggle since he returned to Manchester following an attack which killed his close friend Quinny.
Originally shown on the ITV soap's official website, the three 5-minute shorts have been re-cut and made into a 30-minute special.
When Gary's girlfriend Izzy discovers his camcorder, she eventually coaxes him into sharing his footage with her. However, Izzy has to prepare herself to witness footage recorded on the day Quinny died.
Corrie Extra: Gary's Army Diaries will be broadcast on January 31 at 10pm on ITV2.
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