2.13 dreadnought

Voyager encounters a self-guided, shuttlecraft-sized weapon of mass destruction originally designed by the Cardassians to destroy the Maquis, but disabled and redirected by Torres to attack a Cardassian base. Here, it is aiming itself to destroy a highly populated planet that it has somehow confused with the Cardassian base. Torres has all the access codes; she beams aboard, updates the computer, and makes it realize that it was mistaken; it agrees and shuts down the attack. Back on Voyager, as Torres discusses the technology they will glean from dreadnought, it suddenly takes off again; that was a deception because it now believes (because of Be’Lanna’s programming) that odds are she is a spy being coerced by the Cardassians. Janeway contacts the target planet, informing the leader that Voyager will get in the path of the weapon if their attempts to disarm it fail, which impresses greatly the previously suspicious person. Janeway ejects the life pods and stays behind; Tuvok asks to assist her and she agrees. Torres beams back over to the weapon, and, working in a an environment without life support and having to deal with a computer that talks in her voice, she breaks the containment field by blasting it with her phaser, and beams out just before the dreadnought explodes.