Need help reading RX pin on Xbee

I have a pair of Xbees, and one is transmitting data to the other's rx pin (I'm assuming). I don't care about sending data back to the original Xbee so I'm assuming i don't need to read off of the tx pin or deal with it at all. The original xbee is sending out 28 bytes and the data that i want to read is in bytes 23, 24, 25, & 26.

I have an Arduino Uno that I want to use to read this data using the serial monitor on the computer.

If someone could help me figure out the proper way to wire it and maybe provide me some helpful code so i can make this work, that would be awesome!