The series is the 40th anniversary special and was originally released in six weekly parts from 13 November to 18 December 2003 on the BBC's Doctor Who website.
[1] Although Scream of the Shalka continues the narrative of the original 1963–1989 programme and the 1996 television film, the show's 2005 revival ignored the events.
Angered by the homeless woman's death, the Doctor breaks into Alison's home, and she admits to seeing aliens.
The creatures attack, and the Doctor separates himself from the group and meets Prime, the female commander of the Shalka Confederacy.
Prime orders her minions to have Alison killed, which forces the Doctor to make a deal to spare her life.
The TARDIS is cast into a black hole the Shalka had created inside Earth which they are using as a gateway to bring in more troops.
As UNIT evacuates Lannet, the Doctor learns that one of the Shalka has been captured and that they have a vulnerability to pure oxygen.
When a species is on the edge of ecological destruction, the Shalka finish the job, with the rest of the universe none the wiser.
Back onboard the TARDIS, the Master reveals that it has been a long time since the Doctor had a living companion.
His last companion was killed in the events that also led to the Master choosing to have his consciousness transferred into the android, and to the Doctor's exile.
Doctor Who had suspended production in 1989, and aside from charity specials had only resurfaced as an American-funded television movie in 1996, which did not garner enough ratings to go to a regular series.
Davies later commented that Grant had never been considered for the role in the television series, telling Doctor Who Magazine: "I thought he was terrible.
The book also includes a feature on the making of the webcast, as well as the original Servants of the Shalakor story outline.
This book also revealed that the Big Finish audio drama Immortal Beloved was originally intended as a Shalka sequel before being adapted to feature the Eighth Doctor.