1 Caption: That evening:
1 Monty: Here’s our train to Al Balyana, the town adjacent to ancient Abydos.
2 Monty: Where we hope to find Dr Smith and Erwin at the Great Temple of Osiris, looking for clues to the Crook of Osiris.
3 Prof. Jones: That they’re planning to use to resurrect Hitler’s brain!
4 Monty: There’s no evidence of that!
4 Minnesota Jones: Thanks for the recap, chaps.

Every so often it's a good idea to make sure the audience knows what the characters are supposed to be trying to do.

And when writing a serialised story, every so often it's a good idea to remind yourself what the characters are supposed to be trying to do.