He goes to the bar and introduces himself as "Nick Flynn," a hit man from Miami. He demands to see Sammy, but the mobster’s men decide to throw him out instead.

Cade swipes one of the goon’s guns and points it at him. "If this was a hit," he says, "you’d already be dead."

He gets to see Sammy.

Once he’s in Sammy’s office, he offers his services. Still suspicious, Sammy calls Miami to find out more about "Nick".

Reassured, Sammy offers Cade a job as a bodyguard.

Meanwhile, two cops – one old, one young – are staking out a building. The old cop complains about his "Lewinsky diet" of carrots, cucumbers and bananas, and the young cop shares a pastrami sandwich with him.

The perks of the job

Cade has a drink at the bar. Sammy’s wife Sofia approaches him.

Hinting that she and Sammy have an open relationship, she slips him a key. He refuses it, claiming that his job is to "respect and protect" his boss.

She strolls away, and Sammy strolls up to Cade. "I get the feeling that was a loyalty test," Cade says. It was, and he passed.

Sammy tells him what has been happening. Four gangs used to rule Kansas City in peace, but two have been wiped out.

Jack Mitchum runs the other surviving gang, and Sammy thinks he’s involved. Mitchum swears he’s not behind the hits, but Sammy believes he’s made an alliance with out-of-towners who want to take over Kansas City.

Sammy is sure he’s being spied on, but he doesn’t know how. "It’s like they know every move we’re going to make," he complains.

Cade has a solution: security expert "Morris Bankman," aka Eddie Nambulous. Sammy sweeps for bugs daily, but Eddie has equipment that can scan high frequencies – the frequencies the Gua use.

The scanner starts beeping when he approaches Sammy’s man Bud. It goes wild when Eddie holds the device to Bud’s chest.

Sammy whips his gun out and unbuttons Bud’s shirt. His chest has a red inflammation, and Bud claims it’s been itching for days.

The red spot begins moving. "Get it out of me," Bud screams, and then vomits up a bizarre bio-organic device.

Bud ate a bug

The bug self-destructs under their astonished stares. Sammy decides to shoot Bud, but Cade wants to know what happened.

Bud had made a peace offering to Mitchum a week ago. He says that a spider bit him.

Sammy is skeptical, but Cade and Eddie persuade him that Bud is probably telling the truth. They don’t tell him about the Gua.

Sammy asks, "Who the hell could do that?"

Cade tells him, "That’s what we’ve got to figure out."

That night, Jack Mitchum and Sofia meet on a dark road. She says she wants to leave Sammy and join Jack.

They kiss, but then Jack pushes her away. "No deal," he says. "You turned on Sammy and you could turn on me."

He gets out of her car, but Sammy is standing behind him with a gun. He throws Mitchum against the car door, shouting, "Who’s backing you?"

No, let me beat him up

The soul of reasonability, Cade pulls Sammy back – only to grab Mitchum and jam his gun up the mobster’s nose. He also demands to know who’s behind Mitchum.

Jack laughs at him. "They’ll rip you apart and spit you out," he says.

Cade asks, "You mean the Gua?"

Surprised, he agrees. Before Cade can find out why the Gua are working with Mitchum, though, Sammy decides he’s learned enough and shoots Mitchum.

Sammy orders Cade to ride back to the club with Sofia. Along the way, Sofia comments that Sammy was ready to put a bomb in Mitchum’s car.

The two cops watch them returning to the club. They wonder who Cade is, and snap some surveillance photos.

Sammy wants to know who the "Gua" are. Like most First Wave guest stars, he finds the concept of invading aliens ridiculous.

Another one of Sammy’s men enters. Pete was supposed to help trap Mitchum, but he didn’t show up.

He says, "Sorry, Sammy." Then he pulls out his gun and opens fire.

Bud takes the bullet for Sammy. Cade empties his gun into Pete, who collapses and dissolves.

Sammy asks, "What the hell was that?"

"That was a Gua," says Cade.

What would Tony Soprano do?

As Bud dies a gurgling, unpleasant death, Sammy apologizes for doubting him. He vows to "kill and kill and kill" for revenge.

Then he rounds on Cade. It’s clear to Sammy that Cade is here to hunt the Gua, not to be a bodyguard.

Cade tries to warn him away from launching a personal vendetta against the Gua. "You don’t know what you’re getting into," he says.

Sammy won’t run away from the Gua, though. "I’ve stayed alive because I fight back," he says.

"Then we fight together," Cade says.`

The two cops are trying to find a computer match for Cade’s picture. The young cop complains that he is hungry, blaming his "high metabolism."

Cade asks Eddie to break into Federal surveillance records and find out where Jack Mitchum has been recently.

Doctor Foster, Medicine Woman

Sofia is drinking heavily. "Maybe you’ve had enough," Cade suggests.

Learning about the Gua has left her shaken. Cade tells her he felt much the same way when they discovered their existence, and that he spent a few nights at the bottom of the bottle himself.

Sofia cheers both of them up with a warm-hearted story about the vicious revenge Sammy took on the men who killed her kid brother. Sammy won her heart with this revenge.

"I need someone who doesn’t just sit back and take it," she says. "Just like you."

She tells Cade that he and Sammy have a lot in common: both of them get even with the people who threaten them. "There’s more to it than that," Cade protests.

"Is there?" she asks. "Maybe you and Sammy aren’t as different as you think."

Eddie has found the surveillance records. Mitchum went to a nearby industrial complex four times in the last four weeks.

The cops have had no luck identifying Cade, but new information has just arrived on Jack Mitchum. They have enough to get a warrant and search the industrial complex.

The younger cop – really a Gua agent – turns on the older cop and strangles him. When Sammy and Cade leave for the industrial complex, the Gua agent follows them.

Sammy and Cade break into the complex. They sneak through a warehouse, wondering why it is as cold as a meat locker.

They find a fleet of trucks being loaded. "Let’s see what they’re shipping," Cade says.

They’re shipping meat: human meat. Inside the trucks are dozens of Gua husks.

The Gua agent has snuck up behind them. "Sammy Kozak!" he calls out. "I’d say this is your lucky day!"

The Gua agent likes Sammy’s attitude. Putting on his friendliest smile, he offers to life the contract on the mobster’s life if Sammy will meet "certain conditions."

The aliens are producing more husk bodies, and they need access to gang-controlled trucking routes and loading docks. The Gua Agent promises "the rewards will make you richer than drugs, prostitution and gambling."

Sammy replies, "Bite me." He empties his gun at the Gua agent, and Cade follows his lead.

The Gua catches the bullets.

He makes the offer again: cooperate, or the Gua will come after him tomorrow.

"What is I refuse?" asks Sammy. The agent assures him he won’t.

Sammy spends the next day in his office, thinking. Cade and Eddie compare notes; Eddie wants Cade to get out while he can.

Cade decides to confront Sammy instead. He tries to barge into Sammy’s office, but Sofia warns him that Sammy has killed men for less.

She tries to reassure him. "Sammy always takes care of his own," she says.

Cade replies, "You sure?" He’s still determined to see Sammy, and with a sigh she leads him into the office.

They find Sammy shredding documents. He’s going to take the deal.

"I’m a businessman," he tells Cade. "This is business. If we get in now, we can cut a better deal."

Cade warns Sammy that he can’t let the deal happen, and the mobster pulls a gun on him.

"I like you," Sammy says. "Don’t make me have to kill you."

Asking Sofia to hold Cade at gunpoint, he goes to meet the Gua.

"I can’t let him do this," Cade protests. Sofia tells him it’s Sammy’s choice.

Sammy gets in the car with the Gua agent. Inside, Sofia tearfully lowers her gun.

"Take it," she tells Cade. "It doesn’t matter anymore."

Cade rushes out of the club just in time to see the car explode. Sammy had a bomb in his briefcase.

Love story

Cade meets Sofia in a park before she leaves town. She’s troubled by the threat the Gua pose to the peaceful scene around her.

He tries to reassure her with the thought that Sammy gave his life to save humanity, but he’s stopped by a strange look in her eye.

"I loved him," she says.

As she walks away, Cade is left wondering: did Sofia plant the bomb?