The van is really a lot less suspicious than what they're carrying.

#1 settles his gear and orders Nosy ahead and #2 to keeping an eye out to the side.

Shhhh sniff snorf sneak sneak stalk.

...It’s really kind of unnerving to be sneaking through the park at night with a mutant dog. He’s a little twitchy.

This random guy smoking in the park seems fine, though.

Sneak sneak sneak in a wide detour.

Nosey doesn’t seem to want to take a wide detour. Nosey is very eager to move towards the mystery man.

“...thing must be behind him, right?”

“Never assume. Wait. Not too long. In this situation if they don't move we trank 'em and investigate rather than hanging around too much.”

Meanwhile, a complication climbs out of the tree Random Guy happens to be under.

"–whoa. Hi."

He almost drops...whatever he's smoking. It doesn't have an immediately recognizable scent.

“Hi! Don't mind me, I'm just here to make your life more surreal.” he says, stepping upwind.

"Cool. This is exactly what I want it to be like at all times."

He takes a drag off whatever he's holding. When he blows it out...it's hard to tell, but is that cloud purple?

"Special reason you're climbing trees at night?"

“Getting in touch with nature. Because it's there. Don't knock it 'till you've tried it.

“Did I hit all the clichés?”

“Got ‘em in one.”

He leans back against the tree.

“Wanna try seeing an extra color? ‘S cool if it’s not your thing.”

“Maybe after backups for brains have been invented. And validated.”

He laughs.

"More mystery plants for me."

Another drag, another cloud of weird smoke.

Sniffer is getting a little agitated.

"...Should we just tranq them?"

“We do this by the book. Conveniently, the book agrees with you on timing.”

He unslings his riflething and starts checking it. “I'm going to try to hit both of them in sequence. If I miss, then you help. If that doesn't work, we run. No bullets unless we get cornered. Got that?”

He nods and readies the tranquilizer pistol.

“Are you actually smoking—” thwup.

—that’s a dart.

“Uh—” 

Thwip.

Oh. Good night.

Thump.

"...That was fast."

Time to approach the poor innocent bystanders. Nosey seems very enthusiastic about this.

Now they can actually search the area in detail.

“Looks like we already caught what we're looking for.” Out comes the sack.

...Minion #2 looks a bit ill.

"Oh, no."