When Lotor rose to the Galra Empire's emperor he committed himself to swear allegiance to Lotor. But his lieutenant Lahn he doubted it because he believed that Lotor was weak to emperor. And when Sendak and his the Fire of Purification forces attacked the station their purpose was to protect the planet protected by the station. But Voltron came to help them. And Lahn suspected working with the Paladins. But Hunk got them to work together. And when Omega Shield Station had been corrected they swearing loyalty to Voltron.