Cordelia slapping Watchers. That's it. That's the gifset.

seen from United Kingdom
seen from Italy
seen from United Kingdom

seen from Italy

seen from United States

seen from Australia
seen from United States

seen from United States

seen from Malaysia

seen from Singapore

seen from United States
seen from China

seen from China

seen from United States
seen from United States

seen from United States

seen from Türkiye

seen from United States
seen from Germany
seen from United States
Cordelia slapping Watchers. That's it. That's the gifset.
Spent my workday thinking about an AU of Angel season 3 where Spike and Drusilla are somehow present for Connor's birth and the Whirlwind is reunited under really, really strange circumstances.
Realistically, there's a chance that Spike would want to grab Dru and get the hell out of dodge as soon as he realizes how weird the situation is. Angel and Darla are having a tearful soul-baring heart-to-heart and Spike's ready to burn rubber getting out of L.A.
Even without the Nyazian prophecies Dru would sense something is up and insist on being there to welcome the new member of their "family." In a race against time any seer is welcome, but Dru's nearly as hard to understand as the Scrolls, and no one's first choice for a birth attendant.
She probably foresees Darla's death and becomes very attached/clingy toward her, which unsettles both Angel and Darla.
Darla and Angel are still the leaders of the Whirlwind, but suffice to say the dynamic is very different now that they have souls. Darla's breakdown would be especially shocking to Spike, who's only ever known her to be pragmatic, cunning, and self-serving, and unlike Angel he hasn't witnessed the effects of ensouling up close. Depending on what direction his character development has gone in he may choose to protect his "family," at least given the choice between them and vampire cultists, Wolfram & Hart, and a vengeful vampire hunter.
Holtz may or may not have any idea who Spike and Drusilla are, and they may or may not faze him.
Angel's worried about Holtz, worried about Wolfram & Hart, and now worried about his unpredictable, soulless progeny arriving for his son's birth. He needs all the help he can get but neither he nor the rest of Angel Investigations trust Spike or Dru as far as they can throw them.
Darla's wracked with soul-induced remorse and attempts to apologize to Drusilla (and to some extent Spike) several times for her fate, but it's never quite clear if Dru understands. By the end though, Drusilla's told Darla enough of her own fate for Darla to understand how she will make amends.
The jury's still out if Spike and Dru are there for the birth/death itself and if they stick around after, and what would happen if they do.