This article is about the Spartan Ops episode. For the character, see Catherine Halsey.
Catherine is the third episode of Spartan Ops. It was released on November 19, 2012. In this episode, Dr. Catherine Halsey is brought aboard the UNSC Infinity to study the mysterious artifact retrieved from Requiem by Fireteam Crimson.
The prowler lands and four Marines escort Dr. Halsey before transferring her into the Spartans' custody.
Dr. Halsey shows her restraints.
Lasky nods and Madsen removes the restraints on Dr. Halsey.
The group walks toward the artifact in a dimly lit room.
Dr. Halsey approaches the artifact and tries to touch it.
Dr. Halsey touches the artifact and it lights up.
The group leaves the room. Cuts to a shot of the high-speed tram car the group is on, then to a shot of Dr. Halsey, then of the others.
Madsen tries to answer the question before noticing Dr. Halsey looking at them.
She then turns to face Palmer.
Palmer glowers at Halsey.
A shot of the engine room.
The group walks in and Dr. Halsey starts tinkering with the systems.
Dr. Halsey continues to tinker with the systems and a pulse runs through the room. The Spartans raise their weapons on Dr. Halsey.
Dr. Halsey turns around to face Commander Palmer. Palmer walks forward then orders the Spartans to lower their weapons.
The computer screen indicates where the signal is transmitting to and places a marker.
Note: All dialogue spoken by the Elites are in Sangheili and translated into English.
Gek turns around to see Jul 'Mdama and immediately kneels before him.
Gek stands back up.
A shot of Jul 'Mdama and Gek standing in front of the structure.
They turn around.
Two Sangheili bring a human prisoner before Jul 'Mdama and Gek. It's Dr. Henry Glassman. The Elites roughly shove Glassman to his knees.
He looks down at Glassman.
Cuts to a shot of Dr. Glassman looking around, worried. Cuts to black.