Kate, in her ongoing efforts to keep Lucas from marrying Sami, enlists the help of EJ DiMera (James Scott) who is using the alias "EJ Wells", to seduce Sami away from Lucas. Her efforts fail when EJ is revealed to be the son of Stefano DiMera. Lucas and Sami are deeply in love and are set to marry again, and this time Kate fails to stop it, despite her best efforts.
This passage describes a dramatic conflict in a soap opera, where Kate is trying to sabotage Lucas and Sami's relationship. The revelation about EJ's identity adds another layer of complexity to the plot.