|What is this hideous creature?|
|Serpentine, meeting Lilac for the first time|
Encounter in Dragon Valley Edit
Serpentine is first seen in Dragon Valley, aiding the Shuigang Helicopters in gunning down Torque's starship. He catches Torque, who patched together a Shellduck disguise, and interrogates him. Serpentine demanded to know how many Chasers were left, but Torque refused to talk, retreating into his shell. Furious, Serpentine wondered where the Snake Mount was, and saw parts of it falling behind him, as it was recently destroyed in battle. Serpentine decided to do things the hard way and attacks Torque, who escapes thanks to the timely arrival of Lilac.
Standoff in Shang Mu Edit
Later, Serpentine intercepts Lilac in the Commercial District, in the city of Shang Mu. He attempts to dissuade her from getting in the conflict between Lord Brevon and the Chasers, telling that it wasn't her fight. Lilac then replied that it was the moment they brought to her Homeworld. Sepentine decides an attempt on Lilac's life, hoping that it will make Torque realize the consequences of his decision to allow Lilac and her friends to tag along. Unfortunately for him, he's no match for Lilac's strength, speed and skills. Not even his Robopanther was enough to defeat them. Nevertheless, Serpentine bought the Shuigang forces time to steal the Kingdom Stone, reminding the Commander and his allies of it. He tells them to "Enjoy their victory", just before escaping with the Sky Battalion.
Chasers Among Us Edit
Serpentine contacts Brevon and tells him about the full moon in a cloudless sky, and to confirm that he has the Kingdom Stone. Brevon tells him to upload the scans and return immediately. Later he attends a meeting with Brevon alongside Prince Dail, Syntax and several Shade Troopers. Having learned that Torque have managed to survive and his new "pets" have joined him, Brevon decided that they must exterminate them before they foil his plans. However, the Commander and his allies have been detained in Shang Tu by order of the Royal Magister, and it would be impossible to get to them without exposing their operations. So Brevon orders Serpentine to capture them as soon as they leave Shang Tu.
Payback Time Edit
Torque is released from Shang Tu, and is soon captured by Syntax and the Absolution, and taken to Brevon's Remote Base. Serpentine covers their escape by confronting Lilac, Carol & Milla with his Robogunship, but is once again defeated. He later returns to the Base and waits for Lilac, who infiltrates the Base alone to rescue Torque. She demands that he release Torque immediately, only for Brevon to appear and easily defeat her with a single slash form his knife. Brevon then cuts off her ponytails and subjects her to electric torture.
Preparing for Liftoff Edit
After the Base is destroyed, Serpentine returns to the Dreadnought to help finish the preparations for the liftoff. They learn that Lilac and her friends have managed to rally the armies of Shang Tu and Shang Mu in the Snowfields, and we're heading their way. Brevon gives the orders to Dail and his troops to fight against the rallied united armies. He also orders Serpentine to "Find the Commander and his pets and tear them to shreds". Serpentine goes with Brevon and his other forces as the Dreadought blasts off into space once more.
Serpentine's Last Stand Edit
Finally, Lilac and her friends encounter Serpentine once again, but this time, he appears to be in critical condition. As they approach him, he suddenly transforms into a mutant monster to better fight them. Even so, he is defeated for the third time by the heroines, seemingly destroyed. During the end credits, Serpentine apears to be alive and back to normal, but is screaming in despair and disbelief over the loss of his robotic arms.
Seprentine had survived the destruction of the Dradnought and his mutant form, losing his robotic arms in the process. Also, he failed to escape Avalice after the defeat of Lord Brevon. Marooned, he went into hiding and begun the long process of rebuilding his robotic arms. 2 years later, Serpentine continue to hide in a hidden location, waiting for the right opportunity to escape the planet and reunite with his master. Serpentine will fight the heroes at some point, but it's currently unknown if he'll face them in an act of vengeance, or is trying to avoid them.