ITV viewers were finally introduced to Cain Dingle's secret brother, Caleb Milligan. However, eagle-eyed Emmerdale fans couldn't help but spot one massive blunder during last night's instalment.
Will Ash made his debut in the Yorkshire-based drama on Christmas Day as his new alter ego paid the Dales tough man a visit in prison.
As fans of the program know, Cain (portrayed by Jeff Hordley) was thrown behind bars after taking the blame for Al Chapman's murder.
Following a first explosive introduction, viewers were finally told what really happened between Cain and Caleb during a drama-packed flashback episode which aired last night.
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