One of the three Takret fugitives who share the catwalk with the Enterprise crew during a neutronic storm while their former comrades search the ship for them.
Guri appears in The Catwalk with fellow Takret Tagrim and Renth. The trio bring word of a lethal neutronic wavefront and ask for shelter, since their own vessel cannot outrun it.
They spend the storm with the whole crew in the catwalk of a warp nacelle. Tucker becomes suspicious of the visitors, whose account of themselves does not quite add up and who seem to know a good deal about starship systems.
When armed Takret board Enterprise and start tampering with the engines, the three confess that they are deserters from the Takret Militia and that the boarders are hunting them. They leave safely after Archer forces the militia off the ship.