After the high-kicking Agent May brought Akela in, Agents of SHIELD cranked right up into Mission: Impossible mode.
His appearance in Agents of SHIELD is not the first time Dr Hall has been reformatted for the small screen.
Foreign embassies, they reckon, are unduly pro-gay; the UN is alleged to be "smuggling" in "agents of immorality".
There is an undercurrent of angst in Agents of SHIELD, with Agent Coulson Clark Greggg) occasionally gazing out of a tiny aeroplane window pondering his mysterious death and resurrection.
According to the Hollywood Reporter, the show will be a "bridge" between season breaks in Agents of SHIELD, with their storylines eventually intertwined.
Differences in sediment composition resulting from different sources, and variation in sediment brought about by change in agents of deposition, also lead to stratification.
The original featured music, which will likely be excised, and a voice cast that included Eddie Murphy and Ming-Na, who has most recently been starring in Agents of SHIELD.
He's on the news, on a lunchbox, on a poster on the wall … " This would probably not have been as effective with Hawkeye, who remains unreferenced in Agents of SHIELD.
There are certainly signs of improvement - Lucy Liu portrays the key second character in Elementary, Ming-Na Wen is a main cast member in Agents of S.H.I.E.L.D., and Mindy Kaling delights as star of The Mindy Project.
But here are five reasons to tune in when Agents of SHIELD returns to Channel 4 on Friday.
