Here are the relevant images from this episode of First Strike: The Invasion! Podcast!
Highlights from Doom Patrol #18, by Paul Kupperberg, Graham Nolan and Timothy Dzon:
The Chief really ought to have known Garguax was gonna invade next.
Larry Trainer is the first to fall in this issue.
"Hot Hands" rallies against the Sirens...
...but the warrior women still manage to nerf Negative Woman but good!
Garguax runs out of luck. Earth is pretty tired of getting invaded, you see.
Celsius' funeral, with a strange cameo by Dorothy Spinner in the back there.
Invasion killed the Doom Patrol. Long live the Doom Patrol!
Relevant teaser clip from "The Adventures of Buckaroo Banzai Across the 8th Dimension" by W.D. Richter, and starring Peter Weller, Lewis Smith, and Ellen Barkin
Bonus clips: "Looney Toons" starring Mel Blanc as Porky Pig
End theme music from "The Day the Earth Stood Still" score by Bernard Herrmann