How to Display Data in the Following Manner

How to Display Data in the Following Manner

Sorry the title is not too helpful. But I need logic help.

I have the following two forms:

TERMINALS
- Terminal Name
- Cleared Carriers (this is a multi-select lookup field)
- Zone

CARRIERS
- Carrier Name
- Setup: Terminals (The bidirectional lookup of the field above)

What I am trying to do:
I would like to generate a report that shows all of the unique (distinct) carriers in a zone.

TERMINALS.Zone
CARRIERS.Carrier Name 1
CARRIERS.Carrier Name 2
CARRIERS.Carrier Name 3
CARRIERS.Carrier Name 4
CARRIERS.Carrier Name 5

How do I do this? I have tried a lot of different ways but I cannot get the two tables to link correctly and display just the distinct values.

Any help would be GREATLY appreciated. Thanks!