In the Ring of Fire, Mera intervenes and gets Arthur out of there before Orm can strike a fatal blow. The two get away in her watercraft and are pursued by Orm's men:
Aquaman: So, what's the plan?
Mera: The plan was to recover Atlan's trident, then challenge Orm.
Aquaman: Okay, so we're doing things a little out of order.
Why did Aquaman feel that Mera's plan was a little out of order?