The arching sky is calling
Spacemen back to their trade.
ALL HANDS! STAND BY! FREE FALLING!
And the lights below us fade.
Out ride the sons of Terra,
Far drives the thundering jet,
Up leaps a race of Earthmen,
Out, far, and onward yet.
– ‘The Green Hills of Earth,’ Robert Heinlein
The USS Endeavour (NCC-91895) is a Constitution III-class starship assigned to the Fourth Fleet under the command of Karana Valance. Commissioned in early 2400, Endeavour was built from the parts of her decommissioned namesake, a Manticore-class, and reformed into something new: a symbol of Starfleet’s spirit of cooperation and exploration.
Since early 2401, she has been assigned to the Midgard Sector, on the Beta Quadrant border, and is part of Sirius Squadron, a unit responsible for maintaining the Federation’s regional interests. These interests include diplomatic outreach, with a particular focus on cooperation with the Federation’s allies in the Romulan Republic, as well as humanitarian aid for former Star Empire worlds, exploration of the vast and unknown territories of the fallen empire, and supporting the Federation’s border holdings and needs. As a powerful ship with a multi-mission profile, Endeavour’s day-to-day consists of providing necessary support to these essential operations.
Endeavour’s primary duty, however, is to act as the squadron’s expeditionary unit, the first choice to respond to emerging situations within the Midgard Sector and beyond. These duties may include humanitarian or tactical crises, but also extend to scientific mysteries or entering diplomatic hot-spots. When necessary, Endeavour can act independently for extended periods, and thus may be dispatched to regions or for durations where immediate support may be unavailable for some time.
Either duty keeps Endeavour’s crew occupied and challenged. In Midgard, Endeavour now seeks to reach out to those abandoned by the collapse of the empire, forge new friendships, and explore this newly-independent expanse. Refugees need Starfleet aid, worlds no longer under the rule of Rator or Romulus need welcoming to the galactic family, and vast stretches of the unknown must be explored. But the region is still volatile and dangerous, a breeding ground for criminals and warlords. Not everyone will look fondly on the Federation’s arrival, and many will have a right to be left alone. Walking the line between reaching out and interfering, between exploring and trespassing, between helping and imposing, is a tall challenge for Endeavour in this new era of Starfleet’s efforts to reach back out to the galaxy, and bring hope to a shrouded region.
This story is rated:
for content, which equates to roughly a 16+ rating
BF: Endeavour began in late 2019, and is over 25 missions and almost a million words long. While it is written with the hope of being accessible to new readers, some character threads and storylines are several years old. The following is a suggested reading list for people who want to catch up on old storylines, but do not necessarily wish to read all of Endeavour up to this point. An overall narrative summary can be found here and here on the wiki.
The suggested missions, in order:

Sirius Expeditionary Squadron is a unit centered around the Odyssey-class USS Sirius under the command of Commodore Matt Rourke and oversight of Director of Squadron Operations Vice Admiral Owen Morgan. Sirius Squadron stands ready to deploy outside or at the fringes of Federation territory at short notice to respond to emerging situations across the galaxy. With multiple versatile and powerful ships at its disposal, the squadron can operate independently and without support for extended periods, and is flexible enough to face a range of missions, including under volatile circumstances where objectives and conditions can quickly change. While this profile often leads Sirius Squadron to respond to geopolitical crises, the unit’s versatility make it equally suited emergent scientific investigations.
The squadron is based out of Gateway Station, in the Midgard Sector, which provides logistical support and operational and administrative leadership.
The HQ unit is organised around the Sirius herself, supported by her attached ship Alhabor. Four additional divisions provide specialist support:
The divisions may deploy independently or in support of one another, depending on operational needs.
To follow the main stories of Sirius Squadron, visit the USS Endeavour Command page.
Badge by user; ‘Star dog’ image element generated with Midjourney
Commanding Officer
Executive Officer
Chief Science Officer
Second Officer
Chief Flight Control Officer
Chief Operations Officer
Romulan Republic Exchange Officer
Chief of Security/Tactical
Chief Engineer
Chief Medical Officer
Chief Counsellor
Chief Communications Officer
Chief Intelligence Officer
Assistant Chief Operations Officer
Assistant Chief of Security/Tactical
Assistant Chief Science Officer
Black Knights Squadron Leader
Paramedic
Damage Control Specialist
Security Officer
Journalist
MIA
14 November 2025
All the Stones and Kings of Old - 17
All the Stones and Kings of Old
USS Endeavour
The science lab hummed with work that had not slept for a week, and would not rest soon. Valance found Cortez stood before the holo-projector, the half-resolved schematics of the Orvas freighter rotating in pale blue. Beside it scrolled the scans Sirius Squadron’s ships had taken of other [...]
13 November 2025
All the Stones and Kings of Old - 16
All the Stones and Kings of Old
USS Endeavour
Counsellor Greg Carraway’s office on Sirius was comfortable even by the standards of the mighty, hotel-in-space Odyssey class. No gleaming steel, no modern Starfleet minimalism, just soft lamplight, warm tones, and the faint scent of tea leaves. The carpet was soft enough to muffle voices and [...]
12 November 2025
All the Stones and Kings of Old - 15
All the Stones and Kings of Old
USS Endeavour
Captain’s log, stardate 2402.11. We’ve reached the Lyrane system, in a region of the Expanse that Romulan reports call the Rasalith Reach. Sirius Squadron has made friendly contact with the system’s inhabitants, who’ve granted us permission to set up an operational anchor at the outer [...]
11 November 2025
All the Stones and Kings of Old - 14
All the Stones and Kings of Old
USS Endeavour
The gym was kept well-lit all times of day, the strips of lighting across the bulkhead casting the wide, largely empty space in a cold, exposing light. Kharth hit the bag in a steady rhythm, the sound of leather gloves on padding filling the silence, every blow echoing back at her. Sweat darkened [...]