Vor's Prize

The game starts with the players warframe asleep in a cryopod. Up until this point, Vor had been killing other tenno as they awoke before they were strong enough to stop him. There is no knowing how many Tenno he has killed prior to hunting the player's warframe. Lotus surges the warframe's systems remotely, waking the tenno and allowing them to fight back. The Tenno fights back with the innate powers of their warframe and plots to escape before to late. The lotus guides the tenno throughout their journey from here on. Vor uses his Janus Key to destroy the first extraction ship before the Tenno has a chance to escape. however the tenno soon finds another with Ordis the cephalon on board. Ordis mistakes the tenno for a grineer soldier initially. but quickly comes around and charges the ships engines, leaving the tenno to defend as he does so.

For Vor's failure to capture the Tenno, he is demoted to the rank of Captain

Shortly after escape, the tenno is deployed back to Earth with a series of tasks to gather, craft and install upgrades and new components to their Orbiter. Shortly after the tenno is sent on a rescue mission to save a Corpus black marketer names Darvo. During this incursion, the true purpose of the Ascaris that Vor attached to the Tenno's warframe becomes clear - it will burrow into the warframe and eventually allow Vor to control it. Now having partial control over the warframe, Vor tampers with the warframe's shields remotely. After a successful rescue, Darvo rewards the player with one 'Ascaris Negator Bluprint'. A tool to negate the effects of the ascaris and remove it. though it needs crafting with resources that the newly woken tenno does not own. After a few raids on grineer earth settlements, the tenno now has the resources to craft the Ascaris Negator and can try remove the Ascaris burrowing into their Warframe at long last. Moments later, the Tenno is briefly incapacitated. The Ascaris has an anti-tampering failsafe, and has burrowed deeper into the Warframe.

The tenno is sent on a new mission to board a Grineer Galleon and retrieve a Navigation segment for the operator's orbiter. once completed, said segment is installed allowing  the Tenno to discover the location of Captain Vor. The Tenno evacuates the galleon of the innocent colonists, opting to rescue them before extraction.

Back on the orbiter, Captain Vor is located and the Tenno is sent in to eradicate him. He is located on a mining asteroid without his elite guard. the lotus and Tenno take this opportunity for a surprise attack. After a short battle, Vor is dead and the Ascaris is disintegrated.