The Odyssey licks its wounds after the skirmish with the weapon ship, and Captain Tchang is becoming increasingly focused on dealing with this Krenim superweapon as it continues taking lives around them.

Selveth visits the captain privately – she isn’t the confidant that Sebastian was, but she is a scientist, and thinks she can merge a shuttle’s shields with the temporal stasis field that protects the weapon-ship. The captain asks for volunteers for a rescue mission for Annira, and the first two to step up are Selveth and Kalen. The team decided, Adams is placed in command of the ship and they begin preparations.

The second Type-9 shuttle onboard, the Volga, is modified. The shield systems are tuned to the weapon ship’s, the chroniton warheads from the troop transport are moved into its torpedo launchers, and the captain has Kalen set a remote self-destruct for the shuttle – just in case. Kalen rigs up life support belts with temporal shielding, and the group departs from the Odyssey.

They’re able to follow the weapon ship’s ion trail, and Kalen is able to mask their warp signature in order for them to fall into the ship’s warp wake and follow along. As they maneuver to get into the field though, the ship abruptly drops out of warp to change course, and the turbulence causes the Volga to veer more than a thousand kilometers away from the weapon – who spots them and starts hauling them in via tractor beam.

While the shuttle is tractored in, Kalen acts quickly, utilizing the shuttle’s transporters to relocate them aboard the ship, near Annira. Once freed, the operations manager also frees an older Krenim man named Annorax, who claims to be the designer of the weapon. For the moment, the ship isn’t aware of their presence on the ship, having towed an empty shuttle into their launch bay.

Kalen proposes breaking the group into three, and all heading for the temporal core. There, whoever reaches the core can use their tricorder as a targeting beacon in order to beam one of the shuttle’s chroniton torpedoes to the core, hopefully disabling it. Selveth and Annira head for the computer systems, in an attempt to provide overwatch. Kalen and Annorax make for the core, with the captain taking another route solo.

Kalen makes good use of Annorax’s knowledge of the ship, managing to stay largely hidden. He’s also able to make a backdoor in their security systems with minor assistance from Annira. The Romulan and his Krenim ally arrive at the core, and after a few scans, Kalen places his tricorder for maximum effect before heading back. On the way back, as though fate were displeased with his success, Kalen runs into a group of Krenim security. But quick thinking (and an excellent shot at a wall power tap) disables the group and Kalen calls to the away team to evacuate.

The captain, meanwhile, has gotten involved in a firefight. She found Obrist, the commander of the ship, and the two exchange fire while he calls for backup. The jig up, the Captain finally manages to stun Obrist and hauls him along with her to the launch bay, where they all pile into the Volga and blast off as they trigger the torpedo transport.

The shuttle gets clear of the weapon and the Captain sets up an attack run on the temporal core just as two Krenim warships drop out of warp, protecting the weapon. She attempts to threaten Obrist to make the Krenim withdraw, but discovers the Krenim Imperium isn’t aware of the movements of the Weapon ship – whatever the weapon’s mission, it acts independent of the Imperium. The second torpedo is fired to distract the warships as the Volga retreats. The weapon still survives, but Annira is now safe – and they have the weapon’s designer aboard.