Horizon
As Enterprise is en route to study a planet whose sudden orbital shift has drastically changed its environment, Ensign Mayweather requests leave time so he can visit his family aboard the freighter Horizon, an early cargo-hauler capable of reaching just under warp two. Mayweather particularly looks forward to seeing his father, who had to relinquish his command of the Horizon during an illness. What the Enterprise’s helmsman doesn’t know, however, is that the illness has claimed his father’s life, leaving the ensign’s brother Paul in command. During his visit, Mayweather tries to help upgrade the ship (and boost morale), and neither effort meets with the approval of the Horizon’s new captain. Mayweather’s Starfleet discipline clashes with his family’s fly-by-the-seat-of-their-pants frontier lifestyle, and he may not be able to reconcile his feelings before an attack by alien pirates puts them all in jeopardy.
written by Andrè Bormanis
directed by James Contner
music by Mark McKenzieGuest Cast: Corey Mendell Parker (Paul Mayweather), Joan Pringle (Rianna), Nicole Forester (Nora), Philip Anthony Rodriguez (Juan), Adam Paul (Crewman Nichols), Ken Feinberg (Alien Captain)
LogBook entry by Earl Green
Hundreds of years after the Great Catastrophe that reduced many of the galaxy’s civilizations to rubble, Galactic Union agent Sy Tarkov seeks the expertise of Saloran Hardew, a researcher who has a theory that the Catastrophe was caused by one man named Kalendorf. She tells Tarkov of Kalendorf’s seeming betrayal of his own friends and allies, and how Kalendorf even handed Susan Mendes over to the Daleks he had pledged his life to fight, all in a cunning scheme to infiltrate the Daleks’ command network. And she tells Tarkov that, despite Kalendorf’s apparent defeat of the Daleks centuries ago, there are signs that they’re about to return – and this time the decimated galaxy isn’t ready to repel them. 
Evelyn pays a visit to a student of hers named Sally, arriving quite unbidden to tell her the tale of a recent adventure she and the Doctor experienced on the high seas – a tale of pirates, treasure, daring deeds, and terrible tragedies. Indeed, by invading Sally’s home to foist the story upon her, the Doctor and Evelyn are trying to avert another tragedy – but Evelyn worries that even that may be impossible when, during the recounting of their waterlogged adventure, the Doctor decides it would be better to tell the story in song.
On the planet Gallifrey, oblivious to the coming inauguration of the new President of the High Council, an author known only as the Doctor spends most of his days in an illegal Possibility Generator, researching and reliving events from the history of a primitive world called Earth, upon which his books are based. As his robotic drudge Badger tends to his needs, the Doctor stays in seclusion and fends off the recurring visits of his dreaded great-grand-uncle, Ordinal-General Quences, who has long harbored an ambition of maneuvering the Doctor into the presidency to gain prestige and influence for their family. Another member of the Doctor’s family, claiming to be his great granddaughter Susan, appears, and the Doctor learns that Susan is the new President-elect, and Quences hopes to follow her into a life of prestige. Having dreamt for years of stealing a TARDIS and fleeing Gallifrey with Susan under his wing, the Doctor finally rebels against Quences by overloading the Possibility Generator and flooding the Capitol with its alternate realities. Now, at last, perhaps the Doctor can escape his staid life – or perhaps he won’t. And perhaps Susan will come with him – or perhaps she won’t.
The Doctor parks the TARDIS in orbit of the planet Veln to make some minor repairs, when his time vehicle is further damaged by a toxic gas leaking from a nearby freighter on a collision course. He slips the TARDIS forward by a century and sets down on Veln, finding that the atmosphere is saturated with the same deadly gas. He goes to warn the residents of a nearby mansion of the danger, and leaves Nyssa at the TARDIS. A young woman approaches Nyssa, armed with a scalpel and intent on committing suicide. When the authorities arrive, Nyssa is charged with murder, taken to Veln’s central security block, and is interrogated brutally. The Doctor’s attempts to help are blocked by Lady Forleon, who owns the mansion and seems to have a secret of her own to keep – and her agenda may or may not include preventing the Doctor from trying to rescue Nyssa. In the meantime, blood tests have revealed that Nyssa is an alien, throwing Gilbrook, a Veln security officer, into an increasing state of paranoia. Veln’s own past history with alien visitors hasn’t been pleasant, what with the Koteem freighter which, four generations ago, veered off course to avoid a collision and fatally polluted Veln’s atmosphere…
On the eve of the handover of Hong Kong from Britain to China in 1997, the TARDIS materializes near a traditional English pub. The Doctor, reeling from his ordeal at the hands of the Time Lords after his trial for interfering in the course of history, wanders into the pub to find that it’s run by the retired Brigadier Lethbridge-Stewart – embittered after years of having to run UNIT’s fight against the unknown without any help. Just as the two become uneasily reacquainted, they hear a low-flying jet smash into something nearby, and yet they never see it. When they arrive at the hillside into which something has crashed, the Doctor and the Brigadier realize it’s a Chinese spy plane using some sort of stealth technology that renders it invisible, not just to radar but to the human eye. UNIT quickly arrives, under the command of the brash Colonel Brimmicombe-Wood – an old adversary of the Brigadier’s – and takes over a nearby monastery, monks and all, to use as a temporary command post. The Doctor slowly grows to realize that something more than espionage is going on here – but by the time he realizes who’s behind it, it will already be too late…and this time even the Brigadier doesn’t trust him enough to lend a hand.
The Doctor returns to Norway, where he and Evelyn are eager to catch up with Cassie, who they left to fend for herself – away from other humans – after their horrific encounter with Nimrod, the Forge, and Project Twilight. The Doctor believes he has created a cure for the vampire virus that infected Cassie, and he even finds her soon enough – only to discover that she is now in Nimrod’s employ. Nimrod has been waiting close to Cassie, knowing that the Doctor would return to help her. Nimrod has obtained some top secret information regarding the Doctor, including UNIT records of his past regenerations – an ability Nimrod wants to study and harness for himself, even if it means forcing the Doctor to regenerate by torturing him. Evelyn, in the meantime, brings Cassie back to her senses and together they rescue the Doctor from Nimrod’s hideous experiment. As the three of them make a desperate dash to the TARDIS, which Nimrod has also brought to the Forge, Nimrod guns Cassie down…
2039 A.D.: After encountering rumors of illegal genetic experiments being conducted by the U.S. military under the cover of the Deep-sea Energy Exploration Project, the Doctor drops in with the TARDIS and confirms his worst fears. The ruthless General Flint has been using Professor Vollmer’s ecologically friendly energy experiments, harnessing power from undersea geothermal vents, as a cover for experiments that even the Army has now disavowed. Faced with the impending end of his secret project, Flint has Vollmer injected with a cocktail of accelerated DNA cultivated from sea creatures, his last chance to prove the value of his project. To prevent Vollmer’s mutation into an amphibious life form, the Doctor kills him, but not before Vollmer makes the Doctor promise to look after his daughter. General Flint confiscates the Doctor’s TARDIS key, forcing the Time Lord to abandon the seabase in an escape submarine before Flint’s plan comes to a deadly end: radioactive dirty bombs detonate around the DEEP base, ensuring that even the most curious and determined explorer can’t get near it. 
Having learned its lessons from time-traveling history tour lines of the past, Jolly Chronolidays opts instead to recreate history for its customers. One of its tours takes travelers on a visit to the Sector of Forgotten Souls, the very spot where the pioneering Time Lord Omega detonated – and then captured in mid-explosion – the star that became the source of Gallifrey’s power. But the unique dimensional instabilities of the sector have unintended side effects – the actor who portrays Omega’s ill-fated assistant Vandikirian goes mad, convinced that the real Omega is trying to kill him, and when he turns up dead it seems he wasn’t entirely mistaken in that fear. The Doctor, who has been along for the tour, is puzzled when his investigation of the man’s death dead-ends without a suspect. He’s even more alarmed when he begins hearing the voice of Omega himself, urging him to help the fallen Time Lord escape from his dimension of anti-matter. But will he be able to help Omega when it begins to look like the Doctor himself committed the murder?