While on a romantic Parisian getaway, NYPD vice cop Anna Diazs boyfriend, Nick Korda, proposes to her. Though her heart says yes, Annas hard-boiled instincts are making it hard for her to commit. Is this man for real -- or too good to be true?

Determined to get to the bottom of Nick's strange behavior, Anna decides to trust her instincts and tail him. But things take a turn for the surreal as she watches him murdered by a pair of mysterious agents and realizes she's their next target!

Returning to the scene of Nick's murder, Anna discovers its been covered up down to the dust by the enigmatic Gemini Division, who claim the man she loved wasn't a man at all. He was an artificial life form, and wanted terrorist, known as a SIM.

Anna returns to New York determined to verify Geminis claims about Nick only to end up caught in the middle of a secret war raging between them and the SIMs. If she wants to know the truth about her fiancée, shes going to have to choose a side.

For her first GD assignment, Anna must go undercover to infiltrate the Shanghai biotech firm, Baoshi, and gather whatever intelligence she can on the SIMs’ mysterious terror plot known only as “Thanatos”. Can she do it before her cover is blown?

The search for the technology to hack the Pudong SIM Core leads Anna, Walken and M+M to a hi-tech cattle ranch outside where they soon find themselves surrounded by SIMs. Will Gemini’s weapons arrive in time – or is this the end of the line?

At a secret Gemini training facility in Italy, Anna undergoes orientation on the use of the agency's brutal new field weapons. But the lessons are cut short and Gemini's secret exposed when a captive SIM escapes and launches an all-out SIM assault.

Her loyalty to Gemini Division tested by Van Gogh, Anna is sent to the USS McKinley where Cpl. Ryder, a human sympathetic to the SIM cause and a member of the SIM Underground, shows her footage of the seminal moment that sparked their rebellion.

Anna comes one step closer to uncovering the truth about Thanatos when she infiltrates the SIM Underground. Convinced Thanatos is a genuine threat to humanity, she sets her sights on taking out Amasso. But can she bring herself to pull the trigger?

Though Amasso shows her the true purpose of Thanatos, Anna still doesn’t trust him – and vice versa. But with the key to the SIMs’ survival hidden on Nick’s missing core, they’ll have to work together to liberate the one man who can help them find it.

Dr. Laszlo reveals the location of Nick’s Core, leaving Anna with a terrible choice: to kill or not to kill? Later, as she heads to Antarctica with the SIMs, Anna makes a shocking discovery about the origins of her sudden illness and recent nightmares

As the battle between the SIMs and Gemini Division rages, Anna finally understands what Nick was searching for all along. But now that she knows the truth, will she return to Gemini; or will she continue to stand and fight beside the SIMs?

Trapped in Dr. Gallivan's lab with Baoshi's latest experiment coming after her, Anna has to ask herself, "What the hell is a Beetant?".

Anna confronts Dr. Gallivan/Jill Sinclair about her SIM research, but time is running out for both of them.

Still looking for a way to get at the SIMs, Anna decides to set a trap using herself as bait.

The trap has been set; a SIM has arrived. Now its Anna's turn to be the hunter.

Anna gets in gory detail exactly what makes the SIMs tick, courtesy of Dr. Ng's autopsy.

Anna gets her hands on Gemini Division's primary weapon - the "Genfixer" - and just in time too, as SIMs swarm around her.

Anna's journey takes her inside the Mexico City drug trade searching for the "Conejo Blanco", The White Rabbit.

As part of the NYPD, Anna has seen the effects the street drug Rosa has on people, but now she'll experience it for herself.

Anna get's her hands on a new prize: a SIM experience core.

Anna needs help to unlock the memories in the SIM core...say hello to M&M

After obtaining the items on M&M's list, Anna and Walken begin to setup the hardware at a hospital in Mexico City. When Anna receives M&M's video call from the hospital parking garage, she realizes that they are being watched by the Sims and may be in great danger.

Anna comes to realize that M is pretty useless in battle...but the same could be said for Gemini Division's weapons.

Anna learns more about Nick and his connection to the mangled-ear Gemini agent nicknamed Van Gogh.

Surrounded by SIMs, Anna needs reinforcements. Send in the cows?!?

In Northern Italy for Gemini Division weapons training, Anna comes face to face with The Cleaner and his mangled ear.

Anna is partnered up with The Cleaner as SIMs descend upon the facility looking to free their imprisoned SIM brothers.

In addition to the freed Sims, another small group of Sims attack the Gemini Division Training Facility in Brescia. Chaos ensues and soon it appears that Anna may be the only one left alive.

One thing is clear...Amasso wants Anna. But is she to be his ally or his hostage?.

Although Gemini Division believes Anna is a trusted agent, The Cleaner is determined to prove them wrong.