Doctor Who: The Newbies Guide
Remembrance of the Daleks
This is the first story in Season 25. Whilst it is not the official 25th Anniversary story it is probably the most anniversary-ish story in the season.
The seventh Doctor is fond of mixed metaphors and malapropisms and carries an umbrella with a question mark handle. He is more prone to plan and take proactive action against his foes than his other incarnations.
Ace (real name: Dorothy McShane) is a teenager from 1980s Perivale, London. She is interested in explosives, and has invented one called Nitro Nine. Whilst experimenting with it, she was caught up in a timestorm and ended up on the planet of Iceworld. In Dragonfire she met the Doctor and joined him on his travels. She has the habit of calling the Doctor "Professor" and sometimes using nicknames for other people she encounters.
Recurring and Historical Characters
The Daleks are a race of evil mutants encased in powerful cyborg bodies whose shape is reminiscent of pepperpots. The Doctor has fought them many times, first encountering them on in a city on their home planet of Skaro in The Daleks. The Doctor considers the Daleks his greatest enemy and they are a serious threat to anyone they encounter.
Davros is the the scientist who created the Daleks. In Genesis of the Daleks he foresaw how his race, the Kaleds, would evolve as a result of the radioactive damage their war with the Thals would cause. He engineered this mutated form, altering their emotions to feel hatred for anything that wasn't like them. He also put them into Mark 2 travel machines, which were the earliest form of the Daleks' exterior casing. In Destiny of the Daleks the Daleks recovered him from the bunker in which he had been entombed for centuries. He was last seen onscreen in Revelation of the Daleks.
In An Unearthly Child, the first ever story, the Doctor and his granddaughter Susan spent some time on Earth in the year 1963. The TARDIS was parked in a junkyard at 76 Totter's Lane, whilst Susan attended Coal Hill School.
The two Dalek factions seen in this story may be the ones seen in Revelation of the Daleks.
The Hand of Omega is named after the Omega we saw in The Three Doctors and Arc of Infinity.