takes a sharp detour into delightful frivolity.
That’s right, folks: We’ve got ourselves a murder mystery!
Involving creepy retro robots!

Credit: Ben Blackall/BBC AMERICA
Who work for an interplanetary delivery service that’s basically Amazon in space!
Also, there’s killer bubble wrap!!!
If last week’s “Demons of the Punjab” was a deep family drama, “Kerblam!”
is a rollicking adventure with sinister undertones.
When employees start going missing, the Doctor believes that Kerblam’s automated system has gone haywire.
At first, “Kerblam!”
His plan is to turn all of the ubiquitous bubble wrap that encases each Kerblam delivery into tiny bombs.
(Add “bubble wrap” to the list of ordinary things thatDoctor Whohas made terrifying.)
And it’s here that the seemingly fun episode takes a turn for the bleak.
racks up a real body count.
It’s a complicated moral ending that adds an unexpected bit of depth to an otherwise goofy romp.
Odds and ends
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