The Geordie teenager, who was brought up in foster care, is punched by a woman in a nightclub for sharing a kiss with her boyfriend.
That woman turns out to be Amy's mum, who instantly regrets her actions and chases her down the street to hand over her phone number.
Amy (Chelsea Halfpenny), who was celebrating her birthday, is left riled by the shock encounter.
Kerry arrives in the village tomorrow (July 18) but, after being shooed away by a fierce Val, will she have the chance to reunite with her biological daughter?
Emmerdale airs tonight (Tuesday, July 17) at 7pm on ITV1.
> Read our spoiler for tonight's Emmerdale here
> Emmerdale Chelsea Halfpenny: 'Amy will show emotional side'
> Emmerdale casts Amy Wyatt's mother