Fire Emblem: Path of Radiance/Chapter 11: Blood Runs Red

After freeing the prisoners, the group discovers that Elincia's retainer's are still alive. This news lifts the morale of princess Elincia and the group marches on towards Port Toha. After arriving the group are troubled by the fact that the residents of Toha are not worried about the daein army even though they lost the war. Despite this, they continue preparations as normal and Ranulf goes to find a captain to take them to Begnion. Once he does find one, however, daein soldiers appear and prevent anyone from leaving or entering the town, preventing the mercenaries from escaping. Despite this they plan to continue onward, but before they do so a women discovers that Ranulf is a laguz and sounds the alarm. Ranulf is immediately beaten repeatedly, Ike goes to help but this arouses suspicion in the residents and they alert the Daein soldiers and tell them that there are some suspicious folk (the Greil mercenaries). The Daein army, accompanied by some vigilantes, attempt to intercept and kill the greil mercenaries, this forces them to fight their way to the port.

Base preparations
Replace any worn out weapons with newer versions or the items you received from the chests last level. If you killed the boss you should have got a master seal, if Rhys or Soren are trailing behind the others, use bonus experience to make sure they are at least Lv15 and then make that unit use the master seal, this should allow them to get the boost they need to become a bigger part of the group. If it was Rhys you just promoted then buy him a light tome from the armoury if you can.

Use Bonus experience to help Rhys and Soren catch up with the rest of the group (or Vice versa). Give them any skills you wish, watch any info or support conversations you want and then save the game. Once you are ready, you may start the mission.