Don't mention the TARDIS...
Half a century ago, Doctor How's famous megalomaniac brother sold his fictional life story to the BBC, painting himself as a lone hero. Disillusioned, their four cousins dropped out. For fifty years, it is Doctor How who has protected humanity against the forces of darkness and stupidity.
Illegal aliens try to hack Doctor How's systems, and he finds his estranged cousin Where has already been compromised.
When reports come in of mysterious attacks by alien creatures, How has to rely on his new assistant Kevin, a petty criminal from south London, and Trinity, a morphing super-predator, as he counters this threat to humanity's existence.
His efforts are hampered by bungling agents from MI-16, desperate to capture How's time-travel technology.
Can Doctor How keep ahead of MI-16, save Where and combat the alien threat?