Interpersonal Conflict
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Sea Base Four Master Silurian Fractures

A multi-layered power struggle at Sea Base Four as human and Silurian alliances fracture under environmental pressure and external threats. Command structures collapse amid sabotage, ideological conflicts, and desperate survival measures.

31 events across 1 season

Arc Timeline

Season 21

31 events
S21E1 · Warriors of the Deep Part 1
Bridge crew uncovers probe on radar

Vorshak and Bulic monitor a blipping radar contact while the base remains locked down. Bulic dismisses the possibility of a hunter-killer but raises the specter of an enemy probe scouting …

Start
Commander orders probe launch and alerts Maddox

Under growing suspicion of imminent enemy action, Commander Vorshak authorizes the launch of an unmanned reconnaissance probe. The decision escalates the base’s posture from passive observation to active counterintelligence, reflecting …

Start
Nilson and Solow press ethical limits on mission

In the sterile confinement of the psycho-surgical unit, Nilson confronts Solow over the cold pragmatism required to fulfill their mission. The death of Lieutenant Michaels, exploited as proof of Maddox’s …

Start
Probe loss forces direct military response

The crew detects the sudden destruction of a reconnaissance probe, first on passive sensors then through orbital confirmation from Sentinel Six. Vorshak immediately shifts the base into crisis footing, but …

Climax
Real crisis erupts during missile drill

The base crew completes a missile synchronization drill under Bulic’s guidance, but the false alarm abruptly turns dire when Maddox collapses from the procedure’s strain. Vorshak’s initial relief dissolves into …

Climax
Solow overrides qualms to control Maddox

Nilson and Solow proceed with the forcible mind-control procedure on Maddox despite his exposed vulnerability. Solow connects the psycho-surgical unit to Maddox’s neural sockets, while Nilson inserts a command disc …

Climax
S21E3 · Warriors of the Deep Part 3
Turlough seizes weapon and storms Airlock One

Turlough violently overpowers a guard to seize a rifle and brutally assaults him as he shouts for the airlock to be opened. Against protocol and direct orders, he forces his …

Start
Vorshak relinquishes to Doctor's plan

Vorshak’s Sea Base burns under the Myrka’s advance and Turlough’s miscalculation. Conventional defenses collapse—the weapons barely scratch the creature, the bulkheads crack, and Sea Devils pour into the corridors under …

Start
Crew weighs risks before bridge assault

As the Doctor’s plan to retake the bridge draws near, tension spikes among Bulic, Solow, and Nilson. Bulic coordinates final preparations under Vorshak’s orders while Solow presses Nilson for answers …

Start
Nilson forces Maddox to complete the sabotage

With the Myrka nearing the bridge and Silurian forces poised to seize control of the proton missiles, Nilson physically manipulates Maddox through a control pad, ensuring the technician fulfills his …

Climax
Vorshak accuses Nilson at the bridge

Vorshak confronts Nilson with the recovered conditioning disc, forcing him to justify his actions while Maddox secretly sabotages critical systems. The disc serves as undeniable proof of Nilson’s betrayal, escalating …

Climax
Tegan presses the Doctor about Silurian motives

The Doctor and Tegan stand outside the Sea Base bridge as Tegan demands clarity on the Silurian threat. The Doctor reveals the aliens' explicit goal to seize control of the …

Climax
Nilson forces escape using Tegan as hostage

In a brutal pivot, the traitorous Nilson abandons his sabotage plans and prioritizes his own survival by seizing Tegan. Using the control pad that previously disabled Maddox, Nilson demonstrates he …

Resolution
Turlough and Bulic seek escape route

Trapped in the crew barracks with Sea Devils patrolling outside, Turlough voices the desperate need to leave the Sea Base while Bulic points out their lack of options. The conversation …

Resolution