Emmerdale spoilers follow.
Emmerdale brings back drug dealer Callum next week as Leyla Cavanagh seeks revenge.
Callum stabbed Leyla's son Jacob Gallagher last month, but hasn't been brought to justice as Jacob opted not to tell the police the truth about what had happened.
Jacob was responsible for bringing a knife to the scene when he confronted Callum for dealing drugs to Leyla. Realising that this could get him in trouble, Jacob chose not to tell the authorities who his attacker was.
Next week's episodes revisit the storyline when Leyla agrees to enjoy a big night out with some of the other villagers.
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Leyla worries that the festivities could increase her temptation to relapse, but her friend Suzy Merton reassures her that it'll be fine.
When Leyla arrives at the club, she's furious when she sees that Callum is there.
Suzy senses that emotions might run high, so she urges Leyla to be smart about her next move.
Leyla secretly records Callum when she spots him in the middle of another drug deal, hoping this will be enough evidence to get him in trouble.
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Shortly afterwards, Callum's criminal activity comes back to haunt him as he's handcuffed and taken away.
Leyla can't resist confronting Callum as he goes, revealing that she was the one who caught him.
Suzy fears that antagonising Callum like this could be a terrible mistake – is she right?
Emmerdale airs on weeknights at 7.30pm on ITV1, and streams on ITVX.
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