Thus, it's a shame such a heady performance couldn't have been engaged with a first-class script. Instead, writer Anthony Stevens, perhaps inspired by a recent garden infestation, pits the Doctor against the less-than-terrifying menace of giant slugs bent on conquering the universe using the computational powers of a pair of twin boys (hence the title). Even the Doctor must agree, saying, "In my time I have been threatened by experts. I don't rate you very highly at all." But through it all, Baker takes center stage, attempting to forge a bond with a skeptical audience (if not Peri) as the new Doctor who may not be as cuddly, warm, or even human, as previous incarnations. TV fixture Kevin McNally makes an early appearance as the young Lt. Hugo Lang, an aggressive space officer who takes his share of lumps during the story. --Ryan K. Johnson
The Doctor and Peri also rescue Lieutenant Hugo Lang, space corps commander who was pursuing the twins along with his squad, of which he is the sole survivor. After foiling an attempt to kill them by Noma, one of the two Jocondans assisting Azmael, they go to Joconda, once a beautiful forest world devastated by the attack of Gastropods, giant beings half human/half slug.
The new Doctor seems keen on denouncing his previous self, saying that he had a "feckless charm which wasn't me." On an interesting note, when Peri calls him "Doc," he brings up the memory of the First Doctor in "The Five Doctors": "Kindly refrain from addressing me as Doc, Perpugilliam!" And his remark on becoming "unregenerate" forecasts the Valeyard in the Trial Of A Timelord season.
The new Doctor's outfit fits his personality fine, and Peri's plaid blouse is not bad either--it's Hugo's shiny metallic shirt that fits the epithet "yuck." Heck, if I found an outfit like the Sixth Doctor's, I would "go out like that."
Colin Baker's verbal repartee is one of the reasons he was a successful Who actor, whether he is quoting from poets or rattling off words that silkily roll off his tongue: "I'm a knight errant, not an errant fool." Or how about this alliterative verbal attack on his assistant: "Poor pusilanimous Peri! What a pitiful performance!" Mentally wandering off is a "mental stroll in the park of psychic tranquility." It's easy to see why John Nathan-Turner picked Baker to succeed Peter Davison.
His Doctor is very expressive, and unpleasantly arrogant, but beneath all that, beats two kind hearts, which is important in keeping in line with his personality.
Mestor resembles a furry giant snail with a cross-eyed owl-like face. While his tone is menacing, the cross-eyes make him laughable. As the Doctor tells him, "In my time, I've been threatened by experts. You hardly rate at all."
And Gavin and Andrew Conrad as the Sylvest twins give a good performance as being rational, cerebral, but vulnerable. Remus tells his father: "Just because she gave birth to us, does that automatically grant her a place in our affections?" and that "respect must be earned." Those familiar with Roman mythology know the reference to Romulus and Remus.
Not a bad debut story, although not as excellent as Spearhead From Space or Castrovalva.