Promised Land to The Flash
7 connections
Promised Land
Diagnosis: Murder
Promised Land's Russell Greene helped his boss Ryan Matthews face his families past, then Ryan crossed-over onto Diagnosis Murder to ID the body of one of his ex-wife's old friends
JAG
Oceanic Airlines
NCIS
NCIS was a spinoff of JAG
NCIS: LA
NCIS: LA was a spinoff of NCIS
Hawaii Five-O (2010)
NCIS: LA and Hawaii Five-O worked together in a crossover episode to stop a smallpox outbreak
Arrow
Hawaii Five-O references Dominic Alonzo from Arrow
The Flash
Arrow spun off The Flash