Meanwhile, Hollyoaks introduces a new arrival who's bound to cause a stir when the real Lisa Loveday finally turns up in the village.
Exact details of Lisa's arrival are being kept under wraps, but she'll turn up after the Lovedays decide to step up the search for her.
Sonia Albright, who posed as Lisa for nearly a year, leads the way by urging Zack to seek the answers he needs from dodgy Joanne Cardsley.
Zack decides that Louis is the person who should try approaching Joanne given their past connection, but when Louis refuses to speak to his old flame, it soon becomes clear that Zack may have to take matters into his own hands.
Putting a cunning plan into action, Zack steals his dad's phone and texts Joanne to meet him at the coffee shop, while Sonia lies in wait to mug Joanne as she arrives.
This gives Sonia and Zack the chance to snatch Joanne's laptop and they're shocked by what they find when they go through the computer.
With a new clue to go on, Zack and Sonia try their best to find Lisa - and it's not long before the missing girl arrives at the Hollyoaks police station. Could there be happier times ahead for the Lovedays now that Lisa is back in their lives? We wouldn't bet on it...
Lisa Loveday arrives at the Hollyoaks police station
© Lime Pictures
Louis and Simone come face-to-face with the real Lisa Loveday
© Lime Pictures
Hollyoaks airs these scenes on Friday, April 29 at 6.30pm on Channel 4.