ロンドンで謎の巨大生物の目撃情報が流れる中、ディーンの森へと向かった生物学者ニック･カッターとその仲間たちの前に突如現れた時空の扉。謎を追いかける彼らは、時空を超えて次々と現れ人類に襲いかかる巨大生物たちに、果敢に戦いを挑んでいく。
プライミーバル (シーズン 4)
Back from the Cretaceous 6.5
放送日: 2010-12-30
上映時間: 52 min
概要: A year after becoming marooned in the past, Connor and Abby return from the Cretaceous to a changed and upgraded ARC, but Connor accidentally brings a Spinosaurus back to the present with them.
Be Inconspicuous 8.0
放送日: 2010-12-31
上映時間: 52 min
概要: While Connor and Abby try to earn their old positions on the team back, Connor reunites with his old friend Duncan, who leads Connor to a series of homeless killings at a dock area that the team discover are the work of an elusive and deadly Kaprosuchus.
Lockdown 8.0
放送日: 2011-01-06
上映時間: 52 min
概要: When an Anomaly opens at a theatre, a group of mysterious Anomaly travellers come through, followed by fast and deadly Tree Creepers. Meanwhile, Connor helps Philip design a new security system for the ARC, but it goes horribly awry and sends the ARC into lockdown, and time is running out for Connor to free Rex and Philip before the system suffocates them.
Breakfast Club 8.0
放送日: 2011-01-13
上映時間: 52 min
概要: Matt, Connor and Becker investigate an Anomaly at a secondary school and struggle to save the remaining students from deadly, venomous Therocephalians. Meanwhile, Philip decides to have the ARC's captive creatures including Rex euthanized, prompting Abby to try and smuggle them to safety before it's too late.
The Worm 8.0
放送日: 2011-01-20
上映時間: 52 min
概要: The team go to investigate a flunctuating Anomaly signal at a seaside village, and Matt and Abby struggle to contain a fast and deadly Labyrinthodont's rampage while Connor tries to uncover the secret behind the fluncuating Anomaly signal. Meanwhile, Emily has been captured by Ethan, and Matt attempts to track and save her before it's too late.
The Brave Bride 8.0
放送日: 2011-01-27
上映時間: 52 min
概要: The team investigate an Anomaly incursion at a rural manor house, and reunite with Jenny and discover that the manor is the location for her wedding in the morning; forcing the team to contain a pack of Hyaenodon while ensuring Jenny's soon-to-be-husband doesn't find out. Meanwhile, Jess and Becker are caught in Ethan's deadly trap.
Surprising Visit 8.0
放送日: 2011-02-03
上映時間: 52 min
概要: The team head to an old prison, where they discover an Anomaly that won't lock and is producing satellite Anomalies throughout the prison, which in turn makes it even harder for the team to track a Terror Bird loose in the prison. At the same time, Danny returns from the past with a warning for the team, Ethan's true identity is discovered, Emily is torn between Matt and the chance to return to her home, Matt reveals his secret, and Connor makes a terrible discovery.
シーズン
エピソード 6
エピソード 7
エピソード 10
エピソード 7
エピソード 6
エピソード 12