P.R.O.B.E. in order

P.R.O.B.E. is a spin-off of the Doctor Who universe. 5 films, 4h 52m in all, in release order.

PROBE: The Zero Imperative
1994 · 60 min
Former UNIT luminary Liz Shaw and her assistant Bayliss are investigating a series of bizarre murders, all committed near a soon-to-be-closed psychiatric hospital. When the hospital is unexpectedly reprieved by rich Industrialist Peter Russell events seem to move out of Liz's control. Are the incumbent director of the clinic, Doctor Dove and his predecessor Doctor O'Kane harboring the killer? What is the centuries-old horror hidden in the grounds? And what exactly is the secret of room zero?
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PROBE: The Devil of Winterborne
1995 · 82 min
When P.R.O.B.E. is summoned to investigate the savage murder of a retired headmaster, Liz Shaw is disturbed to find evidence of satanic rite near the scene of the crime. She soon discovers a web of deceit and corruption that extends back in time, threatening the current occupants of nearby Winterborne School. With P.R.O.B.E. under threat from within and the death toll mounting, Liz finds herself under increasing pressure from all sides to produce results... The Devil of Winterborne is at large and only Liz can stop it!
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PROBE: Unnatural Selection
1996 · 47 min
In 1975, the British Government quietly closed down a secret evolutionary project codenamed BEAGLE, ordering the destruction of all research materials. Today, the horrific discovery of several oddly mutated bodies alerts Liz Shaw and P.R.O.B.E. to the fact that something is stalking the original site of project BEAGLE – something which may challenge the very nature of humanity itself! With a crack security team at her disposal, Liz desperately attempts to track down the perverted results of the project. But who or what is hunting whom?
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PROBE: Ghosts of Winterborne
1996 · 42 min
The Devil of Winterborne has only recently been exorcised by PROBE. But when the body of its last victim disappears, and a book of black magic spells is stolen from a local museum, Liz Shaw begins to wonder if the ghosts of the past have really been laid to rest. Forced into an unholy alliance with the school’s disgraced headmaster, Liz must fight not only her own warring emotions, but a festering evil that threatens to corrupt the Earth again after 100 years. But how do you fight a shadow from Hell?
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PROBE: When to Die
2015 · 61 min
When Liz Shaw returns from a working holiday in Spain a new and deeply disturbing case awaits. Corporal 7891Alpha has outlived his usefulness or rather the government can no longer afford to fund the medication. And that can mean only one thing... termination! At first glance a 'government authorised execution' is a simple enough task for the Preternatural Research Bureau (PROBE) team. But as events unfold, and the truth about Corporal 7891Alpha is revealed, the case becomes far more complex. Only Liz's wealth of experience, courage and determination can save the day - but not before her her moral compass is knocked off course.
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Frequently asked questions

What order should I watch P.R.O.B.E. in?

1. PROBE: The Zero Imperative (1994), 2. PROBE: The Devil of Winterborne (1995), 3. PROBE: Unnatural Selection (1996), 4. PROBE: Ghosts of Winterborne (1996), 5. PROBE: When to Die (2015).

How long does it take to watch all of P.R.O.B.E.?

About 4h 52m across 5 released films.

Do any P.R.O.B.E. films have post-credit scenes?

None are listed on TMDB.