The fourth season (which is essentially the second half of series 3) would be underway only 4 months after the previous series. This would be the first and last time that a series of 20 episodes would be split up like this, as for series 5, the entire 20 episode block would be under just one series. Some episodes had to be switched around due to the season long arc involving the villain, the Revoc, wasn't showcased in the series 3 "finale". But this involved undercutting the return of the Daleks for this series. BBC had some mandates, that the Queen's Platinum Jubilee had to be at the forefront of episode 1, and that another episode had to tie into the BBC's 100th Anniversary. As well as a story that Phil Ford implemented later on that could be a backdoor pilot for other TARDIS teams in this animation format. The episodes this series are: Prince of the Daleks, The Marinus Factor, The King's Wrath, Murder on the Dancefloor, Data Breach, Kyle's Schooldays, Victory of the Sontarans, Opening Night, The First Adventure, and The Abomination.
