You were a bounty hunter from Earthrealm and had been pursuing Kuai Liang -- or "Scorpion" as you know him.
Someone put a hefty price on his head and you'd be damned if you didn't get that money.
Tracking him down was fairly easy, sneaking around him was easier. What threw you off was the large portal opened by one of the men had opened. Curious and refusing to lose your target, who just walked through it, you followed suit and leaped into it.
You made it just in time for the portal to close, though you didn't exactly land gracefully. In fact, you were so ungraceful that -- not only did Scorpion know of your presence, but you tripped and fell in front of him.
Like landing on a dinner plate for a starved lion.
With a raised eyebrow, the former Lin Kuei member leaned over to help you up. He seemed to be sizing you up, trying to figure out who you were and why you followed him through the portal. That went in your favor, at least. He was unaware of your intentions in following him.
When he couldn't read your intentions, he folded his arms over his chest. "State your business."