1 Serron: Quick, let's get back to the ship and get Paris to take off. Once we're off this planet, we'll be safe.
2 Serron: We just have to vow never to return. Ever. No matter what.
2 Iki Piki: Um...
3 Serron: Here's the landing pad. We're home free!
4 Serron 2: {standing next to Iki Piki 2, Spanners, and Quercus outside the ship} There they are! The imposters we told you about! Shoot them!!

Ain't time travel fun?

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2018-11-12 Rerun commentary: For anyone who missed it, Iki Piki's "Um" in the second panel is prompted by the fact that they know their future selves show up on the same planet, so Serron's idea of vowing to never return to there is either a vow that will definitely be broken, or a temporal paradox.

That looks like Greedo through the window behind them in panel 1.