Last week, MTV teased fans with a sneak peek at Gaz's arrival to the EOTB villa, and tonight, viewers will finally get to see the notorious ladies man hit the beach.
But not long after settling in, Gary is targeted by the 'Tablet of Terror' and heads back to the seafront to greet a former flame. The only problem is, he doesn't actually know who she is...
As Emily rocks up out of the sea, Gary is seen saying to his co-stars: "Who the f*** is that?"
While Emily's face does jog the memory a little, the reality star struggles to remember his ex's name.
"I think I b*nged her, but I don't know who she is," Gary admits. "I get this quite a lot, but normally if I b*ng a 4/10 I won't remember. She's fit, though. I kind of recognise her face, who is she?"
Uh-oh! That can't go down too well.
One person Gary will definitely recognise though is his Geordie Shore co-star and former on/off love interest, Charlotte Crosby.
Joining Gary on Ex On The Beach, Char is set to rock up to surprise her pal and as expected, the 24-year-old certainly made an entrance!
While most of the EOTB girls choose their best bikini to greet their ex in, Charlotte opted for something slightly more unusual - a wetsuit and scuba gear.
Oh, we can't wait to see Gary's face when she turns up!
Reveal caught up with both Charlotte and Gary before their Ex On The Beach debut, and the pair told us their experience on the show was pretty "intense".
While Charlotte said she felt like she was "walking on eggshells" the entire time, Gary said he found it "daunting" introducing himself to a group of strangers.
"I remember trying to be this sexy person coming out of the water," he said. "But the scariest thing was I didn't know who my ex was going to be on the beach.Then I had to walk into a villa with 12 people and introduce myself…
"I think they thought this arrogant lad is going to come in and bang all the birds. But, I didn't need to prove myself."
Ex On The Beach continues tonight at 10pm on MTV.
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