The Series 4 Prequel Webisodes are special short episodes of Primeval set between Series 3 and Series 4 released on the Web on 22 December 2010 leading up to the January 1st 2011 premiere of Episode 4.1.
The webisodes gives a short glimpse of the Anomaly Research Centre during the year that Abby and Connor were stuck in the Cretaceous. It primarily introduces new team members Matt Anderson and Jess Parker and explains in more detail why the changes in the Anomaly operation occurred.
Not every person was credited for the final product of this episode. The information recorded above is primarily taken from the start and end credits as broadcasted. The Anomaly Research Centre apologises for anyone who is not credited here.
The webisodes were written by Sarah Dollard and filmed at the same time as Series 5. (Series 4 and 5 were made in the same shooting block but with the Series 4 episodes being filmed first.)