 Participants who prefer online questionnaires will be emailed the questionnaire packages via Fluid Survey, and will be asked to complete the questionnaires within 24 hours of receiving the survey email. Christina Tomei, Dr. Sophie Lebel, and Clinical Psychology doctoral students at the University of Ottawa will be the therapy facilitators. All therapy sessions will take place at the Ottawa Hospitals Psychosocial Oncology Program. Therapists will be asked to correspond and meet directly with their own clients. Clinical supervision will be provided for the therapy facilitators. All therapists will receive a one-day training under the direction of Christina Tomei and Dr. Sophie Lebel, who are well trained in the therapy. This approach to monitoring treatment integrity and fidelity has been successful in Lebel and colleagues pilot study. All intervention sessions will be video-recorded, and reviewed independently by Dr. Sophie Lebel and Dr. Monique Lefebvre to assess treatment integrity and fidelity. The sessions will be rated for adherence to the content of the intervention using a 1-10 point Likert scale. Rating scales will be used to measure adherence to content 1-10, adequate processing of affect 1-10, and efficient time management 1-10. If adherence is less than 80 on any of these scales, additional over-the-telephone feedback will be provided. To maximize attendance, participants will be told about the importance of attending all six sessions at the time informed consent is to be obtained. For participants who miss more than one session, they will be asked to withdraw from the study, as too much material will have been missed. Participants will also be reimbursed for their travel expenses for each session. If participants choose to withdraw from the study, they can terminate without any consequence. Reasons for termination will be documented. Participants who select the online questionnaire option will be assigned a participant number, and will be provided with a link to complete their questionnaire package via Fluid Survey, and will receive reminder emails to complete their questionnaires. Participants who select the paper-based option will also be assigned a participant number, and will have questionnaire packages mailed to them at each respective measurement timepoint. Total completion time of each questionnaire package should take 20-30 minutes. A pre-post test design with a control group will be used. In order to examine treatment gains over time, several repeated-measures ANOVAs will be conducted, using a Bonferroni correction to adjust for multiple comparisons. The independent variable will have two-levels: time pre-treatment and post-treatment, and treatment type intervention versus standard care. The dependent variables will be FCR, quality of life, intolerance of uncertainty, reassurance seeking, impact of events, cancer-specific distress, beliefs about benefits of worrying, and coping. An intent-to-treat approach will be used: participants who drop out will be asked to complete their questionnaires and will be kept in the final analyses. Risks are minimal, but it is possible that a participant may not benefit from the intervention and may experience heightened anxiety during his or her participation in the program. Therapy facilitators will be responsible for providing referrals for individual counselling within the Psychosocial Oncology Program, should participants require additional resources. Additionally, the strictest confidentiality will be ensured when storing participant data. Participants will be informed that their participation in the study will be documented electronically on their hospital chart i.e., vOACIS. Participants will be informed that notice of their involvement in the study will be accessible to members of The Ottawa Hospital team who have worked with them e.g., physician, nurse. Participants will be informed that all identifying information and questionnaires will be kept in a secured, locked location at The Ottawa Hospital. This information will be kept in a separate password-protected electronic file. The proposed research has direct implications for clinical services development to improve quality of life for patients with cancer. Based on Lebel and colleagues pilot data, it is possible that this RCT can demonstrate the effectiveness of this new psychosocial intervention to improve FCR and psychological functioning following treatment. Ultimately, this intervention may help women and men with elevated levels of FCR, and can result in improved coping and improve and restore quality of life. 