The episode features a significant flashback where a younger Ben, Gwen, and Grandpa Max visit Mount Rushmore , which is revealed to be a fully functioning Plumber base .
The Plumbers are shown housing an injured creature known as a Psycholeopterran, which has the ability to hypnotize its prey—a power that Ben accidentally experiences. [S1E15] Malefactor
In this flashback, younger Ben encounters Malware , a corrupted Galvanic Mechamorph who attacks the base and absorbs Plumber weaponry. The episode features a significant flashback where a